What does code P227F mean?

DTC codes / P22xx · Fuel and air metering (injector circuits) / P227F

P227FAir Flow Restriction/Air Leak Between Air Filter and MAF (Bank 2)

P227F indicates that the powertrain control module has detected an air flow restriction or air leak in the intake path between the air filter housing and the mass air flow sensor on bank 2 of the engine. The computer compares expected air flow with actual sensor readings and sets this code when the discrepancy exceeds calibrated limits, often using fuel trim and manifold pressure data to confirm the fault.

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.