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Home >> Chevrolet >> 2008 >> Cobalt SS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Control System & Fuel System - 2.4L - DTC P0010 To DTC P0366) >> DTC P0300-P0304 >> Circuit/System Verification

Circuit/System Verification

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  1. Verify that no other DTCs are set.
  2. Engine idling, verify there is no abnormal engine noise.
  3. Observe the Misfire Current Counters with a scan tool. The Misfire Current Counters should not be incrementing. Random misfires that are not steadily incrementing may be normal.
  4. If the vehicle passes the Circuit/System Verification test, 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.