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Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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All severities9253 Low priority305 Check soon8256 Urgent621

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All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 4345–4368 of 7353

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P2334Ignition Coil L Primary Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2334 relates to ignition coil l primary control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2335Ignition Coil L Secondary CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2335 relates to ignition coil l secondary circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2336Cylinder 1 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2336 relates to cylinder 1 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2337Cylinder 2 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2337 relates to cylinder 2 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2338Cylinder 3 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2338 relates to cylinder 3 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2339Cylinder 4 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2339 relates to cylinder 4 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P233AFuel Pressure Regulator C Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP233A relates to fuel pressure regulator c control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P233BFuel Pressure Regulator C Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP233B relates to fuel pressure regulator c control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P233CFuel Pressure Regulator C Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP233C relates to fuel pressure regulator c control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P233DFuel Pressure Regulator B Solenoid Supply Voltage Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP233D relates to fuel pressure regulator b solenoid supply voltage control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P233EFuel Pressure Regulator B Solenoid Supply Voltage Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP233E relates to fuel pressure regulator b solenoid supply voltage control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P233FFuel Pressure Regulator B Solenoid Supply Voltage Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP233F relates to fuel pressure regulator b solenoid supply voltage control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2340Cylinder 5 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2340 relates to cylinder 5 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2341Cylinder 6 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2341 relates to cylinder 6 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2342Cylinder 7 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2342 relates to cylinder 7 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2343Cylinder 8 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2343 relates to cylinder 8 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2344Cylinder 9 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2344 relates to cylinder 9 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2345Cylinder 10 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2345 relates to cylinder 10 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2346Cylinder 11 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2346 relates to cylinder 11 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2347Cylinder 12 Above Knock/Combustion Vibration Sensor ThresholdCheck soonEngine Problems30–120 minutes for initial diagnosisP2347 relates to cylinder 12 above knock/combustion vibration sensor threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2348Cylinder 9 Pressure Sensor CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP2348 relates to cylinder 9 pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2349Cylinder 9 Pressure Sensor Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2349 relates to cylinder 9 pressure sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P234ACylinder 9 Pressure Sensor Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP234A relates to cylinder 9 pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P234BCylinder 9 Pressure Sensor Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP234B relates to cylinder 9 pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.