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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.

“misfire”Clear all

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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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Diagnostic codes

Showing 25–39 of 39

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P2E5FCylinder 7 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E5F relates to cylinder 7 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E60Cylinder 8 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E60 relates to cylinder 8 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E61Alternative Fuel Misfire Detected With Low FuelCheck soonFuel System30–120 minutes for initial diagnosisP2E61 relates to alternative fuel misfire detected with low fuel. Check the fault conditions and vehicle-specific procedure before replacing parts.P0335Crankshaft Position Sensor Circuit MalfunctionSensors & ElectronicsDiagnose P0335 crank sensor code. Learn about the crankshaft position sensor and no-start conditions.P0340Camshaft Position Sensor Circuit MalfunctionSensors & ElectronicsFix P0340 camshaft sensor code. Learn about cam position sensor function and replacement.P0201Injector Circuit Malfunction Cylinder 1Fuel SystemDiagnose P0201 fuel injector circuit fault on cylinder 1 - wiring, driver, and injector causes plus fixes.P0336Crankshaft Position Sensor Range/PerformanceEngine ProblemsFix P0336 crankshaft position sensor range/performance code - a common cause of stalling and hard starts.P0341Camshaft Position Sensor A Circuit Range/Performance Bank 1Sensors & ElectronicsDiagnose P0341 camshaft position sensor code. Learn what causes range/performance faults and how to fix them.P0420Catalyst System Efficiency Below ThresholdLow priorityEmissions System60–150 minutesDiagnose P0420 catalyst efficiency below threshold on Bank 1. Learn what O2 sensor data can show and what to check before replacing the catalytic converter.P0422Main Catalyst Efficiency Below Threshold (Bank 1)Low priorityEmissions System30–90 minutes for initial diagnosisP0422 indicates the catalyst monitor reports that main-catalyst efficiency on Bank 1 is below the calibrated threshold. Learn what to inspect before replacing parts.P0423Heated Catalyst Efficiency Below Threshold (Bank 1)Low priorityEmissions System30–90 minutes for initial diagnosisP0423 indicates the heated-catalyst monitor reports efficiency below the calibrated threshold on Bank 1. Learn what to inspect before replacing parts.P0430Catalyst System Efficiency Below Threshold Bank 2Emissions SystemP0430 catalytic converter code for Bank 2. Same as P0420 but for the other side. Learn diagnosis and repair options.P0432Main Catalyst Efficiency Below Threshold (Bank 2)Low priorityEmissions System30–90 minutes for initial diagnosisP0432 indicates the catalyst monitor reports that main-catalyst efficiency on Bank 2 is below the calibrated threshold. Learn what to inspect before replacing parts.P0433Heated Catalyst Efficiency Below Threshold (Bank 2)Low priorityEmissions System30–90 minutes for initial diagnosisP0433 indicates the heated-catalyst monitor reports efficiency below the calibrated threshold on Bank 2. Learn what to inspect before replacing parts.P0421Warm Up Catalyst Efficiency Below Threshold Bank 1Emissions SystemUnderstand P0421 catalyst code. Learn about warm-up catalyst monitoring and efficiency testing.