Code
P0192
Generic
P — Powertrain
Fuel Rail Pressure Sensor Circuit Low Bank 1
AI status
Completed
Completed
100%
Causes
- Short to ground on FRP sensor signal wire
- Open or low 5V reference to the sensor
- Poor ground at sensor or ECM/PCM
- Corroded, loose or damaged sensor connector
- Failed fuel rail pressure sensor
- Damaged wiring harness (chafing, pinched, rodent damage)
Symptoms
- Check Engine Light (MIL) illuminated
- Hard starting or extended cranking
- Poor engine performance, hesitation or stalling
- Reduced fuel economy
- Engine may enter limp mode with reduced power
- Fuel rail pressure PID reads abnormally low or shows no sensible change with throttle
What to check
- Scan for P0192 and any related codes (P0191, P0193, fuel system pressure codes). Record freeze frame and live data.
- Visually inspect fuel rail pressure sensor, connector and wiring for damage, corrosion or moisture.
- Backprobe the sensor harness with key ON (engine OFF): verify 5V reference, sensor ground, and signal voltage.
- Wiggle harness and connector while watching live data or voltage for intermittent changes.
- Measure fuel rail pressure with a mechanical gauge to confirm actual rail pressure if needed.
- Check battery/charging voltage to ensure stable supply during testing.
Signal parameters
- Expected reference voltage: approx. 5.0 V (key ON) to sensor reference pin
- Expected sensor ground: near 0 V continuity to chassis/ECM ground
- Typical signal output: roughly 0.5–4.5 V across pressure range (varies by manufacturer)
- Circuit low threshold: signal voltage detected below ~0.2–0.5 V triggers circuit-low DTC
- Circuit high threshold: voltages above ~4.7–5.5 V may set circuit-high codes
Diagnostic algorithm
- Retrieve codes and freeze frame; note engine conditions when the code set (rpm, temp, rail pressure).
- Visually inspect the FRP sensor and harness for damage, corrosion, or water ingress at the connector and along harness routing.
- With ignition ON (engine OFF) backprobe sensor: verify 5V reference present, ground continuity to chassis, and signal voltage. If 5V missing, trace back to ECM and check fuses/relays.
- If reference and ground OK but signal is low (
- If wiring appears open/short-free, reconnect sensor and measure signal while applying known pressure (manual pressure source or run engine) and watch for proportional voltage change using a scan tool or DVOM.
- Perform wiggle test on wiring and connector while monitoring signal for intermittent faults. Check for pins pushed out or bent.
- If wiring and connector good but the sensor does not vary with pressure, replace the fuel rail pressure sensor and retest.
- If new sensor still reports circuit low and wiring checks show no fault, suspect ECM input fault—verify with manufacturer procedures before replacing ECM.
- After repairs or wiring fixes, clear codes and perform road test to confirm code does not return and that fuel pressure behavior is normal.
Likely causes
- Corroded or disconnected sensor connector
- Shorted signal wire to chassis ground
- Failed fuel rail pressure sensor
- Open or weak 5V reference or sensor ground
- Intermittent wiring fault (movement, heat, moisture)
Fault status
Status
P0192 — Fuel Rail Pressure Sensor Circuit Low (Bank 1). The FRP sensor signal voltage is below the expected threshold. Check sensor, wiring, connectors, and 5V reference/ground; an ECM fault is less common.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
Similar codes
Repair manuals
Brands with available manuals
7,624
The library contains 7,624 repair and diagnostic manuals. Choose a brand to open the full manual tree by year, model and trim.
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
P0192
GWM
P — Powertrain
- Fuel Temperature Sensor Low
AI status
Completed
Completed
100%
Causes
- Short to ground on FRP sensor signal wire
- Open or low 5V reference to the sensor
- Poor ground at sensor or ECM/PCM
- Corroded, loose or damaged sensor connector
- Failed fuel rail pressure sensor
- Damaged wiring harness (chafing, pinched, rodent damage)
Symptoms
- Check Engine Light (MIL) illuminated
- Hard starting or extended cranking
- Poor engine performance, hesitation or stalling
- Reduced fuel economy
- Engine may enter limp mode with reduced power
- Fuel rail pressure PID reads abnormally low or shows no sensible change with throttle
What to check
- Scan for P0192 and any related codes (P0191, P0193, fuel system pressure codes). Record freeze frame and live data.
- Visually inspect fuel rail pressure sensor, connector and wiring for damage, corrosion or moisture.
- Backprobe the sensor harness with key ON (engine OFF): verify 5V reference, sensor ground, and signal voltage.
- Wiggle harness and connector while watching live data or voltage for intermittent changes.
- Measure fuel rail pressure with a mechanical gauge to confirm actual rail pressure if needed.
- Check battery/charging voltage to ensure stable supply during testing.
Signal parameters
- Expected reference voltage: approx. 5.0 V (key ON) to sensor reference pin
- Expected sensor ground: near 0 V continuity to chassis/ECM ground
- Typical signal output: roughly 0.5–4.5 V across pressure range (varies by manufacturer)
- Circuit low threshold: signal voltage detected below ~0.2–0.5 V triggers circuit-low DTC
- Circuit high threshold: voltages above ~4.7–5.5 V may set circuit-high codes
Diagnostic algorithm
- Retrieve codes and freeze frame; note engine conditions when the code set (rpm, temp, rail pressure).
- Visually inspect the FRP sensor and harness for damage, corrosion, or water ingress at the connector and along harness routing.
- With ignition ON (engine OFF) backprobe sensor: verify 5V reference present, ground continuity to chassis, and signal voltage. If 5V missing, trace back to ECM and check fuses/relays.
- If reference and ground OK but signal is low (
- If wiring appears open/short-free, reconnect sensor and measure signal while applying known pressure (manual pressure source or run engine) and watch for proportional voltage change using a scan tool or DVOM.
- Perform wiggle test on wiring and connector while monitoring signal for intermittent faults. Check for pins pushed out or bent.
- If wiring and connector good but the sensor does not vary with pressure, replace the fuel rail pressure sensor and retest.
- If new sensor still reports circuit low and wiring checks show no fault, suspect ECM input fault—verify with manufacturer procedures before replacing ECM.
- After repairs or wiring fixes, clear codes and perform road test to confirm code does not return and that fuel pressure behavior is normal.
Likely causes
- Corroded or disconnected sensor connector
- Shorted signal wire to chassis ground
- Failed fuel rail pressure sensor
- Open or weak 5V reference or sensor ground
- Intermittent wiring fault (movement, heat, moisture)
Fault status
Status
P0192 — Fuel Rail Pressure Sensor Circuit Low (Bank 1). The FRP sensor signal voltage is below the expected threshold. Check sensor, wiring, connectors, and 5V reference/ground; an ECM fault is less common.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
Similar codes
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
P0192
HUMMER
P — Powertrain
Fuel Rail Pressure Sensor Circuit Low Voltage
AI status
Completed
Completed
100%
Causes
- Short to ground on FRP sensor signal wire
- Open or low 5V reference to the sensor
- Poor ground at sensor or ECM/PCM
- Corroded, loose or damaged sensor connector
- Failed fuel rail pressure sensor
- Damaged wiring harness (chafing, pinched, rodent damage)
Symptoms
- Check Engine Light (MIL) illuminated
- Hard starting or extended cranking
- Poor engine performance, hesitation or stalling
- Reduced fuel economy
- Engine may enter limp mode with reduced power
- Fuel rail pressure PID reads abnormally low or shows no sensible change with throttle
What to check
- Scan for P0192 and any related codes (P0191, P0193, fuel system pressure codes). Record freeze frame and live data.
- Visually inspect fuel rail pressure sensor, connector and wiring for damage, corrosion or moisture.
- Backprobe the sensor harness with key ON (engine OFF): verify 5V reference, sensor ground, and signal voltage.
- Wiggle harness and connector while watching live data or voltage for intermittent changes.
- Measure fuel rail pressure with a mechanical gauge to confirm actual rail pressure if needed.
- Check battery/charging voltage to ensure stable supply during testing.
Signal parameters
- Expected reference voltage: approx. 5.0 V (key ON) to sensor reference pin
- Expected sensor ground: near 0 V continuity to chassis/ECM ground
- Typical signal output: roughly 0.5–4.5 V across pressure range (varies by manufacturer)
- Circuit low threshold: signal voltage detected below ~0.2–0.5 V triggers circuit-low DTC
- Circuit high threshold: voltages above ~4.7–5.5 V may set circuit-high codes
Diagnostic algorithm
- Retrieve codes and freeze frame; note engine conditions when the code set (rpm, temp, rail pressure).
- Visually inspect the FRP sensor and harness for damage, corrosion, or water ingress at the connector and along harness routing.
- With ignition ON (engine OFF) backprobe sensor: verify 5V reference present, ground continuity to chassis, and signal voltage. If 5V missing, trace back to ECM and check fuses/relays.
- If reference and ground OK but signal is low (
- If wiring appears open/short-free, reconnect sensor and measure signal while applying known pressure (manual pressure source or run engine) and watch for proportional voltage change using a scan tool or DVOM.
- Perform wiggle test on wiring and connector while monitoring signal for intermittent faults. Check for pins pushed out or bent.
- If wiring and connector good but the sensor does not vary with pressure, replace the fuel rail pressure sensor and retest.
- If new sensor still reports circuit low and wiring checks show no fault, suspect ECM input fault—verify with manufacturer procedures before replacing ECM.
- After repairs or wiring fixes, clear codes and perform road test to confirm code does not return and that fuel pressure behavior is normal.
Likely causes
- Corroded or disconnected sensor connector
- Shorted signal wire to chassis ground
- Failed fuel rail pressure sensor
- Open or weak 5V reference or sensor ground
- Intermittent wiring fault (movement, heat, moisture)
Fault status
Status
P0192 — Fuel Rail Pressure Sensor Circuit Low (Bank 1). The FRP sensor signal voltage is below the expected threshold. Check sensor, wiring, connectors, and 5V reference/ground; an ECM fault is less common.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 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.
HUMMER
-
HUMMER: 2009
-
HUMMER: 2008
-
HUMMER: 2007
-
HUMMER: 2005
-
HUMMER: 2004
-
HUMMER: 2000
-
HUMMER: 1999
-
HUMMER: 1994
-
HUMMER: 1993
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
P0192
ISUZU
P — Powertrain
Fuel Rail Pressure Sensor Circuit Low
AI status
Completed
Completed
100%
Causes
- Short to ground on FRP sensor signal wire
- Open or low 5V reference to the sensor
- Poor ground at sensor or ECM/PCM
- Corroded, loose or damaged sensor connector
- Failed fuel rail pressure sensor
- Damaged wiring harness (chafing, pinched, rodent damage)
Symptoms
- Check Engine Light (MIL) illuminated
- Hard starting or extended cranking
- Poor engine performance, hesitation or stalling
- Reduced fuel economy
- Engine may enter limp mode with reduced power
- Fuel rail pressure PID reads abnormally low or shows no sensible change with throttle
What to check
- Scan for P0192 and any related codes (P0191, P0193, fuel system pressure codes). Record freeze frame and live data.
- Visually inspect fuel rail pressure sensor, connector and wiring for damage, corrosion or moisture.
- Backprobe the sensor harness with key ON (engine OFF): verify 5V reference, sensor ground, and signal voltage.
- Wiggle harness and connector while watching live data or voltage for intermittent changes.
- Measure fuel rail pressure with a mechanical gauge to confirm actual rail pressure if needed.
- Check battery/charging voltage to ensure stable supply during testing.
Signal parameters
- Expected reference voltage: approx. 5.0 V (key ON) to sensor reference pin
- Expected sensor ground: near 0 V continuity to chassis/ECM ground
- Typical signal output: roughly 0.5–4.5 V across pressure range (varies by manufacturer)
- Circuit low threshold: signal voltage detected below ~0.2–0.5 V triggers circuit-low DTC
- Circuit high threshold: voltages above ~4.7–5.5 V may set circuit-high codes
Diagnostic algorithm
- Retrieve codes and freeze frame; note engine conditions when the code set (rpm, temp, rail pressure).
- Visually inspect the FRP sensor and harness for damage, corrosion, or water ingress at the connector and along harness routing.
- With ignition ON (engine OFF) backprobe sensor: verify 5V reference present, ground continuity to chassis, and signal voltage. If 5V missing, trace back to ECM and check fuses/relays.
- If reference and ground OK but signal is low (
- If wiring appears open/short-free, reconnect sensor and measure signal while applying known pressure (manual pressure source or run engine) and watch for proportional voltage change using a scan tool or DVOM.
- Perform wiggle test on wiring and connector while monitoring signal for intermittent faults. Check for pins pushed out or bent.
- If wiring and connector good but the sensor does not vary with pressure, replace the fuel rail pressure sensor and retest.
- If new sensor still reports circuit low and wiring checks show no fault, suspect ECM input fault—verify with manufacturer procedures before replacing ECM.
- After repairs or wiring fixes, clear codes and perform road test to confirm code does not return and that fuel pressure behavior is normal.
Likely causes
- Corroded or disconnected sensor connector
- Shorted signal wire to chassis ground
- Failed fuel rail pressure sensor
- Open or weak 5V reference or sensor ground
- Intermittent wiring fault (movement, heat, moisture)
Fault status
Status
P0192 — Fuel Rail Pressure Sensor Circuit Low (Bank 1). The FRP sensor signal voltage is below the expected threshold. Check sensor, wiring, connectors, and 5V reference/ground; an ECM fault is less common.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
Similar codes
Repair manuals
Manual library for ISUZU
86
Browse 86 ISUZU manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
ISUZU
-
ISUZU: 2008
-
ISUZU: 2006
-
i-350
-
ISUZU: 2005
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
P0192
LAND ROVER
P — Powertrain
Fuel rail pressure sensor circuit low entry
AI status
Completed
Completed
100%
Causes
- Short to ground on FRP sensor signal wire
- Open or low 5V reference to the sensor
- Poor ground at sensor or ECM/PCM
- Corroded, loose or damaged sensor connector
- Failed fuel rail pressure sensor
- Damaged wiring harness (chafing, pinched, rodent damage)
Symptoms
- Check Engine Light (MIL) illuminated
- Hard starting or extended cranking
- Poor engine performance, hesitation or stalling
- Reduced fuel economy
- Engine may enter limp mode with reduced power
- Fuel rail pressure PID reads abnormally low or shows no sensible change with throttle
What to check
- Scan for P0192 and any related codes (P0191, P0193, fuel system pressure codes). Record freeze frame and live data.
- Visually inspect fuel rail pressure sensor, connector and wiring for damage, corrosion or moisture.
- Backprobe the sensor harness with key ON (engine OFF): verify 5V reference, sensor ground, and signal voltage.
- Wiggle harness and connector while watching live data or voltage for intermittent changes.
- Measure fuel rail pressure with a mechanical gauge to confirm actual rail pressure if needed.
- Check battery/charging voltage to ensure stable supply during testing.
Signal parameters
- Expected reference voltage: approx. 5.0 V (key ON) to sensor reference pin
- Expected sensor ground: near 0 V continuity to chassis/ECM ground
- Typical signal output: roughly 0.5–4.5 V across pressure range (varies by manufacturer)
- Circuit low threshold: signal voltage detected below ~0.2–0.5 V triggers circuit-low DTC
- Circuit high threshold: voltages above ~4.7–5.5 V may set circuit-high codes
Diagnostic algorithm
- Retrieve codes and freeze frame; note engine conditions when the code set (rpm, temp, rail pressure).
- Visually inspect the FRP sensor and harness for damage, corrosion, or water ingress at the connector and along harness routing.
- With ignition ON (engine OFF) backprobe sensor: verify 5V reference present, ground continuity to chassis, and signal voltage. If 5V missing, trace back to ECM and check fuses/relays.
- If reference and ground OK but signal is low (
- If wiring appears open/short-free, reconnect sensor and measure signal while applying known pressure (manual pressure source or run engine) and watch for proportional voltage change using a scan tool or DVOM.
- Perform wiggle test on wiring and connector while monitoring signal for intermittent faults. Check for pins pushed out or bent.
- If wiring and connector good but the sensor does not vary with pressure, replace the fuel rail pressure sensor and retest.
- If new sensor still reports circuit low and wiring checks show no fault, suspect ECM input fault—verify with manufacturer procedures before replacing ECM.
- After repairs or wiring fixes, clear codes and perform road test to confirm code does not return and that fuel pressure behavior is normal.
Likely causes
- Corroded or disconnected sensor connector
- Shorted signal wire to chassis ground
- Failed fuel rail pressure sensor
- Open or weak 5V reference or sensor ground
- Intermittent wiring fault (movement, heat, moisture)
Fault status
Status
P0192 — Fuel Rail Pressure Sensor Circuit Low (Bank 1). The FRP sensor signal voltage is below the expected threshold. Check sensor, wiring, connectors, and 5V reference/ground; an ECM fault is less common.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
Similar codes
Repair manuals
Manual library for LAND ROVER
320
Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
LAND ROVER
-
LAND ROVER: 2022
-
Defender
- 90
- 90
- 90 S
- 90 S
- 90 V8
- 90 V8
- 90 V8 Carpathian Edition
- 90 V8 Carpathian Edition
- 90 X
- 90 X
- 90 X-Dynamic HSE
- 90 X-Dynamic HSE
- 90 X-Dynamic S
- 90 X-Dynamic S
- 90 X-Dynamic SE
- 90 X-Dynamic SE
- 110
- 110
- 110 S
- 110 S
- 110 SE
- 110 SE
- 110 V8
- 110 V8
- 110 V8 Carpathian Edition
- 110 V8 Carpathian Edition
- 110 X
- 110 X
- 110 X-Dynamic SE
- 110 X-Dynamic SE
- 110 XS Edition
- 110 XS Edition
-
Discovery
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Discovery R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Discovery R-Dynamic S
- S
- S
-
Discovery Sport
-
Range Rover
- Autobiography, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover Autobiography
- Autobiography, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover Autobiography
- 2022 Range Rover Base
- 2022 Range Rover Base
- First Edition
- First Edition
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover HSE Westminster
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2022: Range Rover HSE Westminster
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover SE
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover SE
- SE, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover SE
- SE, 4.4L Eng VIN 7 · 4.4L Eng VIN 72022: Range Rover SE
- SV
- SV
- SVAutobiography
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic
- SVAutobiography Dynamic Blk.
- SVAutobiography Dynamic Blk.
-
Range Rover Evoque
-
Range Rover Velar
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar R-Dynamic S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2022: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2022: Range Rover Velar S
-
-
LAND ROVER: 2021
-
Discovery
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Discovery R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Discovery R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Discovery R-Dynamic S
- S
- S
-
Discovery Sport
-
Range Rover
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Autobiography
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Autobiography
- Autobiography Fifty Edition
- Autobiography Fifty Edition
- 2021 Range Rover Base
- 2021 Range Rover Base
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover HSE
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover HSE
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover HSE Westminster
- HSE Westminster, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover HSE Westminster
- HSE Westminster, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover HSE Westminster
- SVAutobiography
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic
- SVAutobiography Dynamic Blk.
- SVAutobiography Dynamic Blk.
-
Range Rover Evoque
-
Range Rover Sport
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography
- Autobiography, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography
- Autobiography, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2021: Range Rover Sport Autobiography Dynamic
- HSE Dynamic
- HSE Dynamic
- HSE Silver Edition, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 2.0L Eng VIN Y · 2.0L Eng VIN Y2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN K · 3.0L Eng VIN K2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Sport HSE Silver Edition
- HSE Silver Edition, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Sport HSE Silver Edition
- HST
- HST
- SE
- SE
- SVR
- SVR
- SVR Carbon Edition
- SVR Carbon Edition
-
Range Rover Velar
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar R-Dynamic S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2021: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar S
- S, 3.0L Eng VIN U · 3.0L Eng VIN U2021: Range Rover Velar S
-
LAND ROVER: 2020
-
Defender
- 90 First Edition
- 90 First Edition
- 110 First Edition
- 110 First Edition
- 110 HSE
- 110 HSE
- 110 S
- 110 S
- 110 SE
- 110 SE
- 110 X
- 110 X
- 110, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Defender 110
- 110, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Defender 110
- 110, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Defender 110
- 110, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Defender 110
-
Discovery
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE
- HSE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE
- HSE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE
- HSE Luxury, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE Luxury
- HSE Luxury, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery HSE Luxury
- HSE Luxury, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE Luxury
- HSE Luxury, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery HSE Luxury
- Landmark
- Landmark
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery SE
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Discovery SE
- SE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery SE
- SE, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Discovery SE
-
Range Rover
- Autobiography
- Autobiography
- Base, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Base
- Base, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Base
- Base, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Base
- Base, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Base
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover HSE
- HSE, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover HSE
- SVAutobiography
- SVAutobiography
- SVAutobiography Dynamic
- SVAutobiography Dynamic
-
Range Rover Evoque
-
Range Rover Sport
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 2.0L Eng VIN Y · 2.0L Eng VIN Y2020: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport Autobiography Dynamic
- Autobiography Dynamic, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport Autobiography Dynamic
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport HSE
- HSE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport HSE
- HSE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport HSE
- HSE, 5.0L Eng VIN E · 5.0L Eng VIN E2020: Range Rover Sport HSE
- HSE Dynamic
- HSE Dynamic
- HSE PHEV
- HSE PHEV
- HST
- HST
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport SE
- SE, 3.0L Eng VIN K · 3.0L Eng VIN K2020: Range Rover Sport SE
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport SE
- SE, 3.0L Eng VIN U · 3.0L Eng VIN U2020: Range Rover Sport SE
- SVR
- SVR
-
Range Rover Velar
- R-Dynamic HSE
- R-Dynamic HSE
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Range Rover Velar R-Dynamic S
- R-Dynamic S, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Range Rover Velar R-Dynamic S
- R-Dynamic S, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Range Rover Velar R-Dynamic S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Range Rover Velar S
- S, 2.0L Eng VIN X · 2.0L Eng VIN X2020: Range Rover Velar S
- S, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Range Rover Velar S
- S, 3.0L Eng VIN V · 3.0L Eng VIN V2020: Range Rover Velar S
- SVAutobiography Dyn.
- SVAutobiography Dyn.
-
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
Code
P0192
MITSUBISHI
P — Powertrain
Fuel pressure sensor low input
AI status
Completed
Completed
100%
Causes
- Short to ground on FRP sensor signal wire
- Open or low 5V reference to the sensor
- Poor ground at sensor or ECM/PCM
- Corroded, loose or damaged sensor connector
- Failed fuel rail pressure sensor
- Damaged wiring harness (chafing, pinched, rodent damage)
Symptoms
- Check Engine Light (MIL) illuminated
- Hard starting or extended cranking
- Poor engine performance, hesitation or stalling
- Reduced fuel economy
- Engine may enter limp mode with reduced power
- Fuel rail pressure PID reads abnormally low or shows no sensible change with throttle
What to check
- Scan for P0192 and any related codes (P0191, P0193, fuel system pressure codes). Record freeze frame and live data.
- Visually inspect fuel rail pressure sensor, connector and wiring for damage, corrosion or moisture.
- Backprobe the sensor harness with key ON (engine OFF): verify 5V reference, sensor ground, and signal voltage.
- Wiggle harness and connector while watching live data or voltage for intermittent changes.
- Measure fuel rail pressure with a mechanical gauge to confirm actual rail pressure if needed.
- Check battery/charging voltage to ensure stable supply during testing.
Signal parameters
- Expected reference voltage: approx. 5.0 V (key ON) to sensor reference pin
- Expected sensor ground: near 0 V continuity to chassis/ECM ground
- Typical signal output: roughly 0.5–4.5 V across pressure range (varies by manufacturer)
- Circuit low threshold: signal voltage detected below ~0.2–0.5 V triggers circuit-low DTC
- Circuit high threshold: voltages above ~4.7–5.5 V may set circuit-high codes
Diagnostic algorithm
- Retrieve codes and freeze frame; note engine conditions when the code set (rpm, temp, rail pressure).
- Visually inspect the FRP sensor and harness for damage, corrosion, or water ingress at the connector and along harness routing.
- With ignition ON (engine OFF) backprobe sensor: verify 5V reference present, ground continuity to chassis, and signal voltage. If 5V missing, trace back to ECM and check fuses/relays.
- If reference and ground OK but signal is low (
- If wiring appears open/short-free, reconnect sensor and measure signal while applying known pressure (manual pressure source or run engine) and watch for proportional voltage change using a scan tool or DVOM.
- Perform wiggle test on wiring and connector while monitoring signal for intermittent faults. Check for pins pushed out or bent.
- If wiring and connector good but the sensor does not vary with pressure, replace the fuel rail pressure sensor and retest.
- If new sensor still reports circuit low and wiring checks show no fault, suspect ECM input fault—verify with manufacturer procedures before replacing ECM.
- After repairs or wiring fixes, clear codes and perform road test to confirm code does not return and that fuel pressure behavior is normal.
Likely causes
- Corroded or disconnected sensor connector
- Shorted signal wire to chassis ground
- Failed fuel rail pressure sensor
- Open or weak 5V reference or sensor ground
- Intermittent wiring fault (movement, heat, moisture)
Fault status
Status
P0192 — Fuel Rail Pressure Sensor Circuit Low (Bank 1). The FRP sensor signal voltage is below the expected threshold. Check sensor, wiring, connectors, and 5V reference/ground; an ECM fault is less common.
Repair difficulty: Medium
Diagnostic time: 1.0-2.5 hours
Similar codes
Repair manuals
Manual library for MITSUBISHI
406
Browse 406 MITSUBISHI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
MITSUBISHI
-
MITSUBISHI: 2024
-
Outlander
- Black Edition, AWD
- Black Edition, AWD
- Black Edition, FWD
- Black Edition, FWD
- ES, AWD
- ES, AWD
- ES, FWD
- ES, FWD
- Platinum Edition
- Platinum Edition
- SE, AWD
- SE, AWD
- SE, FWD
- SE, FWD
- SEL, AWD
- SEL, AWD
- SEL, FWD
- SEL, FWD
- SEL Black Edition, AWD
- SEL Black Edition, AWD
- SEL Black Edition, FWD
- SEL Black Edition, FWD
-
Outlander PHEV
-
MITSUBISHI: 2023
-
Mirage
-
Mirage G4
-
Outlander
- 40th Anniversary
- 40th Anniversary
- Black Edition, AWD
- Black Edition, AWD
- Black Edition, FWD
- Black Edition, FWD
- ES, AWD
- ES, AWD
- ES, FWD
- ES, FWD
- Ralliart
- Ralliart
- SE, AWD
- SE, AWD
- SE, FWD
- SE, FWD
- SEL, AWD
- SEL, AWD
- SEL, FWD
- SEL, FWD
- SEL Black Edition, AWD
- SEL Black Edition, AWD
- SEL Black Edition, FWD
- SEL Black Edition, FWD
- SE Special Edition, AWD
- SE Special Edition, AWD
- SE Special Edition, FWD
- SE Special Edition, FWD
-
Outlander PHEV
-
MITSUBISHI: 2022
-
Eclipse Cross
- ES, AWD
- ES, AWD
- ES, FWD
- ES, FWD
- LE, AWD
- LE, AWD
- LE, FWD
- LE, FWD
- SE, AWD
- SE, AWD
- SE, FWD
- SE, FWD
- SEL, AWD
- SEL, AWD
- SEL, FWD
- SEL, FWD
- SEL Special Edition, AWD
- SEL Special Edition, AWD
- SEL Special Edition, FWD
- SEL Special Edition, FWD
- SE Special Edition, AWD
- SE Special Edition, AWD
- SE Special Edition, FWD
- SE Special Edition, FWD
-
-
MITSUBISHI: 2021
-
MITSUBISHI: 2020
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email