What does code P22DE mean?

Q: What does code P22DE mean?

Cylinder 2 Alternative Fuel Injector Control Circuit Low. P22DE indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the alternative fuel injector on cylinder 2. This means the PCM commanded the injector to open, but the circuit's electrical feedback stayed below the expected threshold, suggesting a short to ground, excessive resistance, or a faulty injector.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22DE

P22DECylinder 2 Alternative Fuel Injector Control Circuit Low

P22DE indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the alternative fuel injector on cylinder 2. This means the PCM commanded the injector to open, but the circuit's electrical feedback stayed below the expected threshold, suggesting a short to ground, excessive resistance, or a faulty injector.

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.