What does code P22E9 mean?

Q: What does code P22E9 mean?

Cylinder 5 Alternative Fuel Injector Control Circuit/Open. P22E9 indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the control circuit for cylinder 5's alternative fuel injector. The PCM commands the injector to fire but does not see the expected electrical response, so it sets this code and may disable that injector to protect the circuit.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22E9

P22E9Cylinder 5 Alternative Fuel Injector Control Circuit/Open

P22E9 indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the control circuit for cylinder 5's alternative fuel injector. The PCM commands the injector to fire but does not see the expected electrical response, so it sets this code and may disable that injector to protect the circuit.

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.