What does code P22E4 mean?

DTC codes / P22xx · Fuel and air metering (injector circuits) / P22E4

P22E4Cylinder 3 Alternative Fuel Injector Control Circuit Range/Performance

P22E4 indicates that the powertrain control module (PCM) has detected an out-of-range or performance fault in the control circuit for the alternative fuel injector on cylinder 3. This circuit drives the injector that supplies the gaseous or alternative fuel (such as compressed natural gas or propane) to that cylinder, and the PCM monitors the circuit for expected voltage and current behavior. The code means the circuit's electrical behavior does not match what the PCM expects under the current operating conditions.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.