What does code P22F6 mean?

Q: What does code P22F6 mean?

Cylinder 8 Alternative Fuel Injector Control Circuit Low. P22F6 indicates that the powertrain control module has detected a low-voltage condition on the control circuit for cylinder 8's alternative fuel injector, which is used when the engine runs on a fuel such as compressed natural gas or propane. The computer commands the injector on, but the circuit's voltage stays below the expected threshold, so the injector may not open or may open weakly.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22F6

P22F6Cylinder 8 Alternative Fuel Injector Control Circuit Low

P22F6 indicates that the powertrain control module has detected a low-voltage condition on the control circuit for cylinder 8's alternative fuel injector, which is used when the engine runs on a fuel such as compressed natural gas or propane. The computer commands the injector on, but the circuit's voltage stays below the expected threshold, so the injector may not open or may open weakly.

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.