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Home >> Chevrolet >> 2016 >> City Express LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L >> Diagnostic Information And Procedures >> DTC P0327 or P0328 >> Circuit/System Verification

Circuit/System Verification

  1. Engine running
  2. Verify DTC P0327 or P0328 is not set.
    • If DTC P0327 or P0328 is set. 

      Refer to Circuit/System Testing.

    • Go to next step: If none of the DTCs are set 
  3. Verify the affected Knock Sensor is properly tightened. Refer to Fastener Specifications .
  4. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the freeze frame/failure Records data.
    • If any of the DTCs set 

      Refer to Circuit/System Testing.

    • Go to next step: If none of the DTCs set 
  5. All OK
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