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DTC codes / P22xx · Fuel and air metering (injector circuits) / P22DD

P22DDCylinder 2 Alternative Fuel Injector Control Circuit/Open

P22DD indicates that the powertrain control module (PCM) has detected an open circuit or abnormal voltage on the control circuit for the alternative fuel injector for cylinder 2. This means the PCM cannot properly command that injector to deliver fuel when the engine is running on the alternative fuel source, such as compressed natural gas (CNG) or liquefied petroleum gas (LPG).

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.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage