Code
P1330
CITROEN
P — Powertrain
Cylinder 2 knock adjust limiter malfunction
Views:
UK: 3
EN: 4
RU: 5
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent knock sensor (cylinder 2 or bank sensor depending on vehicle)
- Damaged or corroded wiring or connector to the knock sensor (open, short to ground or to Vbatt)
- Poor engine ground or power supply to the ECM
- Faulty ECM/PCM or internal knock control circuitry
- Excessive engine mechanical noise (detonation/knock) being misinterpreted
- ECM software bug or incorrect calibration
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light ON
- Reduced engine power or performance (ECU may retard timing or enable a limiter)
- Engine roughness or hesitation under load
- Reduced fuel economy
- Intermittent behavior: fault may appear/disappear with temperature or vibration
- Possible engine pinging or knock under heavy load if knock control disabled
What to check
- Read and record all stored DTCs and freeze frame / live data with a capable scanner
- Verify if fault is current, pending, or historical and whether multiple knock-related codes are present
- Visually inspect knock sensor connector, wiring harness, and engine grounds for damage, corrosion or oil contamination
- Check battery voltage and charging system for stable supply (12–14.5 V during cranking and running)
- Backprobe the knock sensor signal with a scope or multimeter while cranking and during a loaded run
- Perform wiggle test on wiring and connector while monitoring fault and sensor signal
Signal parameters
- Knock sensor type: typically piezoelectric accelerometer or resonator; produces AC voltage pulses when knock occurs
- Typical idle/no-knock: very low amplitude AC (near noise floor). Expected p-p amplitude at idle: often
- During knock: pulse amplitudes increase. Typical measured pulse range for knock events: ~0.1–1.0 V p-p (varies by system and engine size)
- Some systems use a single-wire sensor (no DC bias) while others use two-wire or three-wire sensors with bias — consult factory wiring diagram
- Knock frequency content: engine-specific resonant band (often several hundred to a few thousand Hz); use oscilloscope or scan-tool knock channel for spectral analysis
- If ECU expects a specific bias or reference and sees open/short, this will trigger the limiter fault
Diagnostic algorithm
- Connect a suitable OBD-II scanner that shows knock control data (if available). Record freeze frame and related live parameters.
- Verify battery and charging voltage. Low or fluctuating voltage can cause false knock readings.
- Inspect connector and harness at cylinder 2 knock sensor. Repair or clean any corrosion, and ensure secure mating.
- Perform a visual and mechanical check of the sensor mounting area — sensor must be tight to the block/head and free of oil/gasket contamination.
- Backprobe the sensor connector and check continuity to the ECU pin. Verify no opens or shorts to ground or battery.
- Measure sensor output with an oscilloscope while cranking and during a loaded acceleration run. Look for expected low noise at idle and pulses under knock conditions. Compare with known-good channel or factory reference.
- If oscilloscope not available, measure resistance only if manufacturer specifies a resistance test; many piezo knock sensors do not have a useful static resistance reading. Refer to service manual.
- Swap the suspect sensor with an identical sensor from another cylinder (if interchangeable) and see if the code follows the sensor. If it does, replace the sensor.
- If wiring and sensor check OK and code remains, check ECU grounds and power supplies. Repair any grounding or supply issues.
- Check for software updates or technical service bulletins for ECM knock control. Relearn/reset adaptive values after repair and clear codes, then road test under load to confirm repair.
- If all else fails, consider ECU diagnosis/repair or replacement following manufacturer procedures. Do not replace ECU without confirming wiring and sensor integrity.
Likely causes
- Open or shorted knock sensor harness between sensor and ECU
- Loose, corroded, or oil-contaminated knock sensor connector at cylinder 2
- Failed knock sensor (wear, heat damage or internal short)
- Weak battery/poor charging causing unstable sensor signal reference
- ECU limiting knock control after repeated knock events (limiter state)
- Engine mechanical condition causing abnormal knock frequency or amplitude
Fault status
Status
P1330 — Cylinder 2 knock adjust limiter malfunction. The engine control module has detected an issue with the knock sensing/adjustment for cylinder 2 and has limited knock control for protection.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
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Code
P1330
DAEWOO
P — Powertrain
SPARK TIMING ADJUST SIGNAL
Views:
UK: 2
EN: 3
RU: 5
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent knock sensor (cylinder 2 or bank sensor depending on vehicle)
- Damaged or corroded wiring or connector to the knock sensor (open, short to ground or to Vbatt)
- Poor engine ground or power supply to the ECM
- Faulty ECM/PCM or internal knock control circuitry
- Excessive engine mechanical noise (detonation/knock) being misinterpreted
- ECM software bug or incorrect calibration
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light ON
- Reduced engine power or performance (ECU may retard timing or enable a limiter)
- Engine roughness or hesitation under load
- Reduced fuel economy
- Intermittent behavior: fault may appear/disappear with temperature or vibration
- Possible engine pinging or knock under heavy load if knock control disabled
What to check
- Read and record all stored DTCs and freeze frame / live data with a capable scanner
- Verify if fault is current, pending, or historical and whether multiple knock-related codes are present
- Visually inspect knock sensor connector, wiring harness, and engine grounds for damage, corrosion or oil contamination
- Check battery voltage and charging system for stable supply (12–14.5 V during cranking and running)
- Backprobe the knock sensor signal with a scope or multimeter while cranking and during a loaded run
- Perform wiggle test on wiring and connector while monitoring fault and sensor signal
Signal parameters
- Knock sensor type: typically piezoelectric accelerometer or resonator; produces AC voltage pulses when knock occurs
- Typical idle/no-knock: very low amplitude AC (near noise floor). Expected p-p amplitude at idle: often
- During knock: pulse amplitudes increase. Typical measured pulse range for knock events: ~0.1–1.0 V p-p (varies by system and engine size)
- Some systems use a single-wire sensor (no DC bias) while others use two-wire or three-wire sensors with bias — consult factory wiring diagram
- Knock frequency content: engine-specific resonant band (often several hundred to a few thousand Hz); use oscilloscope or scan-tool knock channel for spectral analysis
- If ECU expects a specific bias or reference and sees open/short, this will trigger the limiter fault
Diagnostic algorithm
- Connect a suitable OBD-II scanner that shows knock control data (if available). Record freeze frame and related live parameters.
- Verify battery and charging voltage. Low or fluctuating voltage can cause false knock readings.
- Inspect connector and harness at cylinder 2 knock sensor. Repair or clean any corrosion, and ensure secure mating.
- Perform a visual and mechanical check of the sensor mounting area — sensor must be tight to the block/head and free of oil/gasket contamination.
- Backprobe the sensor connector and check continuity to the ECU pin. Verify no opens or shorts to ground or battery.
- Measure sensor output with an oscilloscope while cranking and during a loaded acceleration run. Look for expected low noise at idle and pulses under knock conditions. Compare with known-good channel or factory reference.
- If oscilloscope not available, measure resistance only if manufacturer specifies a resistance test; many piezo knock sensors do not have a useful static resistance reading. Refer to service manual.
- Swap the suspect sensor with an identical sensor from another cylinder (if interchangeable) and see if the code follows the sensor. If it does, replace the sensor.
- If wiring and sensor check OK and code remains, check ECU grounds and power supplies. Repair any grounding or supply issues.
- Check for software updates or technical service bulletins for ECM knock control. Relearn/reset adaptive values after repair and clear codes, then road test under load to confirm repair.
- If all else fails, consider ECU diagnosis/repair or replacement following manufacturer procedures. Do not replace ECU without confirming wiring and sensor integrity.
Likely causes
- Open or shorted knock sensor harness between sensor and ECU
- Loose, corroded, or oil-contaminated knock sensor connector at cylinder 2
- Failed knock sensor (wear, heat damage or internal short)
- Weak battery/poor charging causing unstable sensor signal reference
- ECU limiting knock control after repeated knock events (limiter state)
- Engine mechanical condition causing abnormal knock frequency or amplitude
Fault status
Status
P1330 — Cylinder 2 knock adjust limiter malfunction. The engine control module has detected an issue with the knock sensing/adjustment for cylinder 2 and has limited knock control for protection.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
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Code
P1330
DS
P — Powertrain
Cylinder 2 knock adjust limiter malfunction
Views:
UK: 2
EN: 6
RU: 4
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent knock sensor (cylinder 2 or bank sensor depending on vehicle)
- Damaged or corroded wiring or connector to the knock sensor (open, short to ground or to Vbatt)
- Poor engine ground or power supply to the ECM
- Faulty ECM/PCM or internal knock control circuitry
- Excessive engine mechanical noise (detonation/knock) being misinterpreted
- ECM software bug or incorrect calibration
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light ON
- Reduced engine power or performance (ECU may retard timing or enable a limiter)
- Engine roughness or hesitation under load
- Reduced fuel economy
- Intermittent behavior: fault may appear/disappear with temperature or vibration
- Possible engine pinging or knock under heavy load if knock control disabled
What to check
- Read and record all stored DTCs and freeze frame / live data with a capable scanner
- Verify if fault is current, pending, or historical and whether multiple knock-related codes are present
- Visually inspect knock sensor connector, wiring harness, and engine grounds for damage, corrosion or oil contamination
- Check battery voltage and charging system for stable supply (12–14.5 V during cranking and running)
- Backprobe the knock sensor signal with a scope or multimeter while cranking and during a loaded run
- Perform wiggle test on wiring and connector while monitoring fault and sensor signal
Signal parameters
- Knock sensor type: typically piezoelectric accelerometer or resonator; produces AC voltage pulses when knock occurs
- Typical idle/no-knock: very low amplitude AC (near noise floor). Expected p-p amplitude at idle: often
- During knock: pulse amplitudes increase. Typical measured pulse range for knock events: ~0.1–1.0 V p-p (varies by system and engine size)
- Some systems use a single-wire sensor (no DC bias) while others use two-wire or three-wire sensors with bias — consult factory wiring diagram
- Knock frequency content: engine-specific resonant band (often several hundred to a few thousand Hz); use oscilloscope or scan-tool knock channel for spectral analysis
- If ECU expects a specific bias or reference and sees open/short, this will trigger the limiter fault
Diagnostic algorithm
- Connect a suitable OBD-II scanner that shows knock control data (if available). Record freeze frame and related live parameters.
- Verify battery and charging voltage. Low or fluctuating voltage can cause false knock readings.
- Inspect connector and harness at cylinder 2 knock sensor. Repair or clean any corrosion, and ensure secure mating.
- Perform a visual and mechanical check of the sensor mounting area — sensor must be tight to the block/head and free of oil/gasket contamination.
- Backprobe the sensor connector and check continuity to the ECU pin. Verify no opens or shorts to ground or battery.
- Measure sensor output with an oscilloscope while cranking and during a loaded acceleration run. Look for expected low noise at idle and pulses under knock conditions. Compare with known-good channel or factory reference.
- If oscilloscope not available, measure resistance only if manufacturer specifies a resistance test; many piezo knock sensors do not have a useful static resistance reading. Refer to service manual.
- Swap the suspect sensor with an identical sensor from another cylinder (if interchangeable) and see if the code follows the sensor. If it does, replace the sensor.
- If wiring and sensor check OK and code remains, check ECU grounds and power supplies. Repair any grounding or supply issues.
- Check for software updates or technical service bulletins for ECM knock control. Relearn/reset adaptive values after repair and clear codes, then road test under load to confirm repair.
- If all else fails, consider ECU diagnosis/repair or replacement following manufacturer procedures. Do not replace ECU without confirming wiring and sensor integrity.
Likely causes
- Open or shorted knock sensor harness between sensor and ECU
- Loose, corroded, or oil-contaminated knock sensor connector at cylinder 2
- Failed knock sensor (wear, heat damage or internal short)
- Weak battery/poor charging causing unstable sensor signal reference
- ECU limiting knock control after repeated knock events (limiter state)
- Engine mechanical condition causing abnormal knock frequency or amplitude
Fault status
Status
P1330 — Cylinder 2 knock adjust limiter malfunction. The engine control module has detected an issue with the knock sensing/adjustment for cylinder 2 and has limited knock control for protection.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
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Code
P1330
LEXUS
P — Powertrain
Igniter Circuit Malfunction No 7
Views:
UK: 12
EN: 11
RU: 30
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent knock sensor (cylinder 2 or bank sensor depending on vehicle)
- Damaged or corroded wiring or connector to the knock sensor (open, short to ground or to Vbatt)
- Poor engine ground or power supply to the ECM
- Faulty ECM/PCM or internal knock control circuitry
- Excessive engine mechanical noise (detonation/knock) being misinterpreted
- ECM software bug or incorrect calibration
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light ON
- Reduced engine power or performance (ECU may retard timing or enable a limiter)
- Engine roughness or hesitation under load
- Reduced fuel economy
- Intermittent behavior: fault may appear/disappear with temperature or vibration
- Possible engine pinging or knock under heavy load if knock control disabled
What to check
- Read and record all stored DTCs and freeze frame / live data with a capable scanner
- Verify if fault is current, pending, or historical and whether multiple knock-related codes are present
- Visually inspect knock sensor connector, wiring harness, and engine grounds for damage, corrosion or oil contamination
- Check battery voltage and charging system for stable supply (12–14.5 V during cranking and running)
- Backprobe the knock sensor signal with a scope or multimeter while cranking and during a loaded run
- Perform wiggle test on wiring and connector while monitoring fault and sensor signal
Signal parameters
- Knock sensor type: typically piezoelectric accelerometer or resonator; produces AC voltage pulses when knock occurs
- Typical idle/no-knock: very low amplitude AC (near noise floor). Expected p-p amplitude at idle: often
- During knock: pulse amplitudes increase. Typical measured pulse range for knock events: ~0.1–1.0 V p-p (varies by system and engine size)
- Some systems use a single-wire sensor (no DC bias) while others use two-wire or three-wire sensors with bias — consult factory wiring diagram
- Knock frequency content: engine-specific resonant band (often several hundred to a few thousand Hz); use oscilloscope or scan-tool knock channel for spectral analysis
- If ECU expects a specific bias or reference and sees open/short, this will trigger the limiter fault
Diagnostic algorithm
- Connect a suitable OBD-II scanner that shows knock control data (if available). Record freeze frame and related live parameters.
- Verify battery and charging voltage. Low or fluctuating voltage can cause false knock readings.
- Inspect connector and harness at cylinder 2 knock sensor. Repair or clean any corrosion, and ensure secure mating.
- Perform a visual and mechanical check of the sensor mounting area — sensor must be tight to the block/head and free of oil/gasket contamination.
- Backprobe the sensor connector and check continuity to the ECU pin. Verify no opens or shorts to ground or battery.
- Measure sensor output with an oscilloscope while cranking and during a loaded acceleration run. Look for expected low noise at idle and pulses under knock conditions. Compare with known-good channel or factory reference.
- If oscilloscope not available, measure resistance only if manufacturer specifies a resistance test; many piezo knock sensors do not have a useful static resistance reading. Refer to service manual.
- Swap the suspect sensor with an identical sensor from another cylinder (if interchangeable) and see if the code follows the sensor. If it does, replace the sensor.
- If wiring and sensor check OK and code remains, check ECU grounds and power supplies. Repair any grounding or supply issues.
- Check for software updates or technical service bulletins for ECM knock control. Relearn/reset adaptive values after repair and clear codes, then road test under load to confirm repair.
- If all else fails, consider ECU diagnosis/repair or replacement following manufacturer procedures. Do not replace ECU without confirming wiring and sensor integrity.
Likely causes
- Open or shorted knock sensor harness between sensor and ECU
- Loose, corroded, or oil-contaminated knock sensor connector at cylinder 2
- Failed knock sensor (wear, heat damage or internal short)
- Weak battery/poor charging causing unstable sensor signal reference
- ECU limiting knock control after repeated knock events (limiter state)
- Engine mechanical condition causing abnormal knock frequency or amplitude
Fault status
Status
P1330 — Cylinder 2 knock adjust limiter malfunction. The engine control module has detected an issue with the knock sensing/adjustment for cylinder 2 and has limited knock control for protection.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
Your experience will help others
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Was this AI description helpful?
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👍 Like
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Code
P1330
PEUGEOT
P — Powertrain
Cylinder 2 knock adjust limiter malfunction
Views:
UK: 1
EN: 5
RU: 3
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent knock sensor (cylinder 2 or bank sensor depending on vehicle)
- Damaged or corroded wiring or connector to the knock sensor (open, short to ground or to Vbatt)
- Poor engine ground or power supply to the ECM
- Faulty ECM/PCM or internal knock control circuitry
- Excessive engine mechanical noise (detonation/knock) being misinterpreted
- ECM software bug or incorrect calibration
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light ON
- Reduced engine power or performance (ECU may retard timing or enable a limiter)
- Engine roughness or hesitation under load
- Reduced fuel economy
- Intermittent behavior: fault may appear/disappear with temperature or vibration
- Possible engine pinging or knock under heavy load if knock control disabled
What to check
- Read and record all stored DTCs and freeze frame / live data with a capable scanner
- Verify if fault is current, pending, or historical and whether multiple knock-related codes are present
- Visually inspect knock sensor connector, wiring harness, and engine grounds for damage, corrosion or oil contamination
- Check battery voltage and charging system for stable supply (12–14.5 V during cranking and running)
- Backprobe the knock sensor signal with a scope or multimeter while cranking and during a loaded run
- Perform wiggle test on wiring and connector while monitoring fault and sensor signal
Signal parameters
- Knock sensor type: typically piezoelectric accelerometer or resonator; produces AC voltage pulses when knock occurs
- Typical idle/no-knock: very low amplitude AC (near noise floor). Expected p-p amplitude at idle: often
- During knock: pulse amplitudes increase. Typical measured pulse range for knock events: ~0.1–1.0 V p-p (varies by system and engine size)
- Some systems use a single-wire sensor (no DC bias) while others use two-wire or three-wire sensors with bias — consult factory wiring diagram
- Knock frequency content: engine-specific resonant band (often several hundred to a few thousand Hz); use oscilloscope or scan-tool knock channel for spectral analysis
- If ECU expects a specific bias or reference and sees open/short, this will trigger the limiter fault
Diagnostic algorithm
- Connect a suitable OBD-II scanner that shows knock control data (if available). Record freeze frame and related live parameters.
- Verify battery and charging voltage. Low or fluctuating voltage can cause false knock readings.
- Inspect connector and harness at cylinder 2 knock sensor. Repair or clean any corrosion, and ensure secure mating.
- Perform a visual and mechanical check of the sensor mounting area — sensor must be tight to the block/head and free of oil/gasket contamination.
- Backprobe the sensor connector and check continuity to the ECU pin. Verify no opens or shorts to ground or battery.
- Measure sensor output with an oscilloscope while cranking and during a loaded acceleration run. Look for expected low noise at idle and pulses under knock conditions. Compare with known-good channel or factory reference.
- If oscilloscope not available, measure resistance only if manufacturer specifies a resistance test; many piezo knock sensors do not have a useful static resistance reading. Refer to service manual.
- Swap the suspect sensor with an identical sensor from another cylinder (if interchangeable) and see if the code follows the sensor. If it does, replace the sensor.
- If wiring and sensor check OK and code remains, check ECU grounds and power supplies. Repair any grounding or supply issues.
- Check for software updates or technical service bulletins for ECM knock control. Relearn/reset adaptive values after repair and clear codes, then road test under load to confirm repair.
- If all else fails, consider ECU diagnosis/repair or replacement following manufacturer procedures. Do not replace ECU without confirming wiring and sensor integrity.
Likely causes
- Open or shorted knock sensor harness between sensor and ECU
- Loose, corroded, or oil-contaminated knock sensor connector at cylinder 2
- Failed knock sensor (wear, heat damage or internal short)
- Weak battery/poor charging causing unstable sensor signal reference
- ECU limiting knock control after repeated knock events (limiter state)
- Engine mechanical condition causing abnormal knock frequency or amplitude
Fault status
Status
P1330 — Cylinder 2 knock adjust limiter malfunction. The engine control module has detected an issue with the knock sensing/adjustment for cylinder 2 and has limited knock control for protection.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
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Was this AI description helpful?
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Code
P1330
VOLKSWAGEN
P — Powertrain
Cylinder 6 Knock Control Limit Attained
Views:
UK: 11
EN: 12
RU: 24
AI status
Completed
Completed
100%
Causes
- Faulty or intermittent knock sensor (cylinder 2 or bank sensor depending on vehicle)
- Damaged or corroded wiring or connector to the knock sensor (open, short to ground or to Vbatt)
- Poor engine ground or power supply to the ECM
- Faulty ECM/PCM or internal knock control circuitry
- Excessive engine mechanical noise (detonation/knock) being misinterpreted
- ECM software bug or incorrect calibration
Symptoms
- Malfunction Indicator Lamp (MIL) / Check Engine Light ON
- Reduced engine power or performance (ECU may retard timing or enable a limiter)
- Engine roughness or hesitation under load
- Reduced fuel economy
- Intermittent behavior: fault may appear/disappear with temperature or vibration
- Possible engine pinging or knock under heavy load if knock control disabled
What to check
- Read and record all stored DTCs and freeze frame / live data with a capable scanner
- Verify if fault is current, pending, or historical and whether multiple knock-related codes are present
- Visually inspect knock sensor connector, wiring harness, and engine grounds for damage, corrosion or oil contamination
- Check battery voltage and charging system for stable supply (12–14.5 V during cranking and running)
- Backprobe the knock sensor signal with a scope or multimeter while cranking and during a loaded run
- Perform wiggle test on wiring and connector while monitoring fault and sensor signal
Signal parameters
- Knock sensor type: typically piezoelectric accelerometer or resonator; produces AC voltage pulses when knock occurs
- Typical idle/no-knock: very low amplitude AC (near noise floor). Expected p-p amplitude at idle: often
- During knock: pulse amplitudes increase. Typical measured pulse range for knock events: ~0.1–1.0 V p-p (varies by system and engine size)
- Some systems use a single-wire sensor (no DC bias) while others use two-wire or three-wire sensors with bias — consult factory wiring diagram
- Knock frequency content: engine-specific resonant band (often several hundred to a few thousand Hz); use oscilloscope or scan-tool knock channel for spectral analysis
- If ECU expects a specific bias or reference and sees open/short, this will trigger the limiter fault
Diagnostic algorithm
- Connect a suitable OBD-II scanner that shows knock control data (if available). Record freeze frame and related live parameters.
- Verify battery and charging voltage. Low or fluctuating voltage can cause false knock readings.
- Inspect connector and harness at cylinder 2 knock sensor. Repair or clean any corrosion, and ensure secure mating.
- Perform a visual and mechanical check of the sensor mounting area — sensor must be tight to the block/head and free of oil/gasket contamination.
- Backprobe the sensor connector and check continuity to the ECU pin. Verify no opens or shorts to ground or battery.
- Measure sensor output with an oscilloscope while cranking and during a loaded acceleration run. Look for expected low noise at idle and pulses under knock conditions. Compare with known-good channel or factory reference.
- If oscilloscope not available, measure resistance only if manufacturer specifies a resistance test; many piezo knock sensors do not have a useful static resistance reading. Refer to service manual.
- Swap the suspect sensor with an identical sensor from another cylinder (if interchangeable) and see if the code follows the sensor. If it does, replace the sensor.
- If wiring and sensor check OK and code remains, check ECU grounds and power supplies. Repair any grounding or supply issues.
- Check for software updates or technical service bulletins for ECM knock control. Relearn/reset adaptive values after repair and clear codes, then road test under load to confirm repair.
- If all else fails, consider ECU diagnosis/repair or replacement following manufacturer procedures. Do not replace ECU without confirming wiring and sensor integrity.
Likely causes
- Open or shorted knock sensor harness between sensor and ECU
- Loose, corroded, or oil-contaminated knock sensor connector at cylinder 2
- Failed knock sensor (wear, heat damage or internal short)
- Weak battery/poor charging causing unstable sensor signal reference
- ECU limiting knock control after repeated knock events (limiter state)
- Engine mechanical condition causing abnormal knock frequency or amplitude
Fault status
Status
P1330 — Cylinder 2 knock adjust limiter malfunction. The engine control module has detected an issue with the knock sensing/adjustment for cylinder 2 and has limited knock control for protection.
Repair difficulty: Medium
Diagnostic time: 1.0 - 3.0 hours
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