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P1613 — Fuel contains water | Remotecoding

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Code

P1613

ALFA ROMEO P — Powertrain

Fuel contains water | Remotecoding

AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

89

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Code

P1613

BUICK P — Powertrain

Loss Of DIM Serial Data

Brand: BUICK
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

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Code

P1613

CADILLAC P — Powertrain

Loss Of DIM Serial Data

Brand: CADILLAC
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

206

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Code

P1613

CHEVROLET P — Powertrain

Loss Of DIM Serial Data

AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

456

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Code

P1613

DAEWOO P — Powertrain

Ecu self diagnosis mal

Brand: DAEWOO
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

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75

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Code

P1613

FIAT P — Powertrain

Fuel contains water | Remotecoding

Brand: FIAT
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

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26

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Code

P1613

GM P — Powertrain

Loss Of DIM Serial Data

Brand: GM
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

Your experience will help others
+100 karma for a short comment :)
Send to email
Code

P1613

GMC P — Powertrain

Loss Of DIM Serial Data

Brand: GMC
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

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Code

P1613

HUMMER P — Powertrain

Loss of DIM Serial Data

Brand: HUMMER
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

Repair manuals

Manual library for HUMMER

138

Browse 138 HUMMER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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Code

P1613

MERCEDES-BENZ P — Powertrain

IFI Control Module N37

AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

Browse 856 MERCEDES-BENZ manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

MERCEDES-BENZ

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Code

P1613

MINI P — Powertrain

CAN data bus, automatic stability control (ASC) system

Brand: MINI
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

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Code

P1613

OLDSMOBILE P — Powertrain

Loss Of DIM Serial Data

AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

Your experience will help others
+100 karma for a short comment :)
Send to email
Code

P1613

Other P — Powertrain

SBDS Interactive Codes

Brand: Other
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

9,415

The library contains 9,415 repair and diagnostic manuals. Choose a brand to open the full manual tree by year, model and trim.

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Code

P1613

SAAB P — Powertrain

Internal Control Module Malfunction

Brand: SAAB
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

Your experience will help others
+100 karma for a short comment :)
Send to email
Code

P1613

SATURN P — Powertrain

Loss Of DIM Serial Data

Brand: SATURN
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

Similar codes

Your experience will help others
+100 karma for a short comment :)
Send to email
Code

P1613

VOLKSWAGEN P — Powertrain

MIL Call-Up Circuit Open Short To B+

AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Water present in fuel (contaminated fuel or water ingress)
  • Saturated/blocked fuel filter or fuel/water separator
  • Faulty water-in-fuel sensor or sensor element
  • Damaged, corroded or shorted wiring/connectors to the sensor
  • Faulty fuel pump or fuel module contaminated by water
  • Improper module coding or ECU software conflict after remote coding

Symptoms

  • Check Engine Light (MIL) illuminated
  • Hard or long cranking, difficulty starting
  • Rough idle, misfires or reduced engine power
  • Intermittent stalling or poor drivability under load
  • Fuel smell at filler or around fuel filter area
  • Visible water or milky appearance in fuel or separator (if accessible)

What to check

  • Connect a diagnostic scanner, read and record freeze-frame data and all related codes
  • Check live data for water-in-fuel sensor status or fuel filter moisture indicator (if available)
  • Visually inspect fuel filter/water separator, fittings and drain for water or contamination
  • Drain sample from fuel filter/water separator and examine for water/particulates
  • Inspect wiring and connectors for corrosion, corrosion products, bent pins, damaged insulation or poor fit
  • Check for recent software updates or remote coding events noted in service history

Signal parameters

  • Water-in-fuel sensor typically reports a two-state or variable resistance/voltage signal to the ECU; values change when water is present — compare to manufacturer specification
  • Expected behavior: ‘dry’ state (open/high resistance or defined voltage) and ‘wet’ state (low resistance or switched voltage) — refer to factory data for exact values
  • Look for stuck values, intermittent switching, or implausible voltages which indicate sensor or wiring fault

Diagnostic algorithm

  1. Safety first: work in a well-ventilated area, eliminate ignition sources, wear eye/glove protection when handling fuel.
  2. Use a scan tool to confirm P1613 and record live data / freeze-frame. Check for other related codes (fuel sensor, fuel pressure, fuel pump).
  3. Visually inspect the fuel filter/water separator area and drain the separator into a clear container to check for water or contaminants.
  4. If water is present: drain and dispose contaminated fuel per local regulations, replace fuel filter/water separator and any primers/o-rings, then refill with clean fuel. If tank contamination is significant, consider tank cleaning and fuel system flush.
  5. If no visible water or after replacing filter the code persists: back-probe the water-in-fuel sensor connector and measure resistance/voltage while operating the vehicle or simulating sensor conditions; compare to factory specs.
  6. Inspect and repair wiring and connectors between sensor and ECU (check for corrosion, shorts to ground, open circuits).
  7. If sensor wiring and filter are good, test/inspect the fuel pump/module for contamination or electrical faults; replace as required.
  8. After repairs, clear stored codes, perform a soak/drive cycle to verify code does not return and confirm normal running. Record results.
  9. If code appeared after remote coding or ECU update and persists despite correct hardware/function, consult official Alfa Romeo service information for required coding/reprogramming or re-start procedure; perform manufacturer-guided re-coding if needed.

Likely causes

  • Water collected in fuel filter/water separator (most likely)
  • Failed or stuck water-in-fuel sensor
  • Corroded connector at fuel filter/water separator
  • Recent refuelling from contaminated source or vehicle exposed to flood conditions
  • ECU communication/coding error after remote coding or software update

Fault status

⚠️ Status
P1613 (manufacturer-specific) — Water detected in fuel or fault in water-in-fuel sensor/circuit. ECM logged the condition; action: inspect/drain filter separator, check sensor and wiring, replace contaminated components and follow manufacturer procedures for any required reprogramming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 0.5-2.0 hours

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