What does code P02C2 mean?

Q: What does code P02C2 mean?

Cylinder 11 - Fuel Trim at Max Limit. P02C2 indicates that the engine control module has detected the long-term fuel trim for cylinder 11 has reached its maximum corrective limit, meaning the computer can no longer add enough fuel to bring that cylinder's air-fuel ratio back to stoichiometric. This typically points to a lean condition specific to cylinder 11, such as a vacuum leak, faulty injector, or intake restriction affecting only that cylinder.

DTC codes / P02xx · Fuel and air metering (injector circuits) / P02C2

P02C2Cylinder 11 - Fuel Trim at Max Limit

P02C2 indicates that the engine control module has detected the long-term fuel trim for cylinder 11 has reached its maximum corrective limit, meaning the computer can no longer add enough fuel to bring that cylinder's air-fuel ratio back to stoichiometric. This typically points to a lean condition specific to cylinder 11, such as a vacuum leak, faulty injector, or intake restriction affecting only that cylinder.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.