What does code P02B1 mean?

Q: What does code P02B1 mean?

Cylinder 6 - Injector Leaking. P02B1 indicates that the powertrain control module (PCM) has detected a leaking condition in the fuel injector for cylinder 6, typically by monitoring fuel trim or pressure behavior that indicates excess fuel is entering that cylinder when it should not. The computer sets this code when the injector fails to fully seal, allowing fuel to drip or flow into the intake port or cylinder even when the injector is commanded off.

DTC codes / P02xx · Fuel and air metering (injector circuits) / P02B1

P02B1Cylinder 6 - Injector Leaking

P02B1 indicates that the powertrain control module (PCM) has detected a leaking condition in the fuel injector for cylinder 6, typically by monitoring fuel trim or pressure behavior that indicates excess fuel is entering that cylinder when it should not. The computer sets this code when the injector fails to fully seal, allowing fuel to drip or flow into the intake port or cylinder even when the injector is commanded off.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.