Circuit/System Testing
WARNING: This page is about a different variant/trim than selected.
- Unplug the fuel injector for the cylinder that indicated the misfire.
- Start the engine. Record the DTCs that set. The appropriate injector control circuit DTC P0201-P0208 should set.
- If the appropriate injector control circuit DTC did not set replace the ECM.
- Reconnect the injector and clear the DTCs. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List.
- If any DTCs other than P0300-P0308 are set, diagnose those DTCs first.
- If only DTC P0300-P0308 are set, go to Fuel Injector Balance Test with Tech 2 (Automatic Transmission) or Fuel Injector Balance Test with Tech 2 (Manual Transmission) .