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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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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.
Diagnostic codes
Showing 3721–3744 of 6682
P2294Fuel Pressure Regulator B Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP2295Fuel Pressure Regulator B Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP2296Fuel Pressure Regulator B Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP2297O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2298O2 Sensor Out of Range During Deceleration Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2299Brake Pedal Position/Accelerator Pedal Position IncompatibleCheck soonSensors & Electronics30–120 minutes for initial diagnosisP229AFuel Pressure Regulator B Exceeded Control Limits - Pressure Too LowCheck soonFuel System30–120 minutes for initial diagnosisP229BFuel Pressure Regulator B Exceeded Control Limits - Pressure Too HighCheck soonFuel System30–120 minutes for initial diagnosisP229CFuel Pressure Regulator B Exceeded Learning Limits - Too LowCheck soonFuel System30–120 minutes for initial diagnosisP229DFuel Pressure Regulator B Exceeded Learning Limits - Too HighCheck soonFuel System30–120 minutes for initial diagnosisP229ENOx Sensor Circuit Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP229FNOx Sensor Circuit Range/Performance Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A0NOx Sensor Circuit Low Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A1NOx Sensor Circuit High Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A2NOx Sensor Circuit Intermittent Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A3NOx Sensor Heater Control Circuit/Open Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A4NOx Sensor Heater Control Circuit Low Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A5NOx Sensor Heater Control Circuit High Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A6NOx Sensor Heater Sense Circuit Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A7NOx Sensor Heater Sense Circuit Range/Performance Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A8NOx Sensor Heater Sense Circuit Low Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22A9NOx Sensor Heater Sense Circuit High Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22AANOx Sensor Heater Sense Circuit Intermittent Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP22ABO2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosis