Diagnostic library
Find an OBD2 code
Search the code from your scanner, then narrow the library by system, severity, or code family.
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 889–912 of 1016
P2B09Cold Start Cylinder 2 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0ACold Start Cylinder 3 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0BCold Start Cylinder 4 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0CCold Start Cylinder 5 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0DCold Start Cylinder 6 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0ECold Start Cylinder 7 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B0FCold Start Cylinder 8 Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B10Cylinder 1 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B11Cylinder 1 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B12Cylinder 2 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B13Cylinder 2 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B14Cylinder 3 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B15Cylinder 3 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B16Cylinder 4 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B17Cylinder 4 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B18Cylinder 5 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B19Cylinder 5 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B1ACylinder 6 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B1BCylinder 6 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B1CCylinder 7 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B1DCylinder 7 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B1ECylinder 8 Injection Pulse Offset Not LearnedCheck soonFuel System30–120 minutes for initial diagnosisP2B1FCylinder 8 Injection Pulse Offset Exceeded Learning LimitCheck soonFuel System30–120 minutes for initial diagnosisP2B95Cold Start Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosis