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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo Extended, 6.6 2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L (LLY) - DTC P0016 To DTC P0341 >> DTC P0300-P0308 >> Circuit/System Testing

Circuit/System Testing

  1. Unplug the fuel injector for the cylinder that indicated the misfire.
  2. 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.
  3. 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.
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