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9,253 diagnostic guides
Find codes by symptomChoose what you notice to search matching code guides.
Rough idle or shakingVibration while stoppedHard to startLong cranking or no-startEngine stallsCuts out at idle or on the roadHesitates or loses powerSlow response when acceleratingBattery light is onCharging system warningHarsh 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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Diagnostic codes
Showing 121–144 of 378
P2086Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 2Check soonEmissions System30–120 minutes for initial diagnosisP2087Exhaust Gas Temperature Sensor Circuit Intermittent Bank 2 Sensor 2Check soonEmissions System30–120 minutes for initial diagnosisP2096Post Catalyst Fuel Trim System Too Lean Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP2097Post Catalyst Fuel Trim System Too Rich Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP2098Post Catalyst Fuel Trim System Too Lean Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP2099Post Catalyst Fuel Trim System Too Rich Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP20A0Reductant Purge Control Valve A Circuit /OpenCheck soonEmissions System30–120 minutes for initial diagnosisP20A1Reductant Purge Control Valve A PerformanceCheck soonEmissions System30–120 minutes for initial diagnosisP20A2Reductant Purge Control Valve A Circuit LowCheck soonEmissions System30–120 minutes for initial diagnosisP20A3Reductant Purge Control Valve A Circuit HighCheck soonEmissions System30–120 minutes for initial diagnosisP20A4Reductant Purge Control Valve A Stuck OpenCheck soonEmissions System30–120 minutes for initial diagnosisP20A5Reductant Purge Control Valve A Stuck ClosedCheck soonEmissions System30–120 minutes for initial diagnosisP20E2Exhaust Gas Temperature Sensor 1/2 Correlation Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP20E3Exhaust Gas Temperature Sensor 1/3 Correlation Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP20E4Exhaust Gas Temperature Sensor 2/3 Correlation Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP20E5Exhaust Gas Temperature Sensor 1/2 Correlation Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP213AEGR Throttle Control Circuit B /OpenCheck soonEmissions System30–120 minutes for initial diagnosisP213BEGR Throttle Control Circuit B Range/PerformanceCheck soonEmissions System30–120 minutes for initial diagnosisP213CEGR Throttle Control Circuit B LowCheck soonEmissions System30–120 minutes for initial diagnosisP213DEGR Throttle Control Circuit B HighCheck soonEmissions System30–120 minutes for initial diagnosisP2141EGR Throttle Control Circuit A LowCheck soonEmissions System30–120 minutes for initial diagnosisP2142EGR Throttle Control Circuit A HighCheck soonEmissions System30–120 minutes for initial diagnosisP2143EGR Vent Control Circuit/OpenCheck soonEmissions System30–120 minutes for initial diagnosisP2144EGR Vent Control Circuit LowCheck soonEmissions System30–120 minutes for initial diagnosis