Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Buick >> 2008 >> Allure CXS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.6L - DTC P0008 To DTC P0333 >> DTC P0300-P0306 >> Circuit/System Verification

Circuit/System Verification

  1. Engine idling at the normal operating temperature.
  2. Verify that DTCs: DTC P0011, P0014, P0021, P0024, P0201-P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P0335, P0336, P0338, P2088, P2090, P2092, P2094, P2300, P2301, P2303, P2304, P2306, P2307, P2309, P2310, P2312, P2313, P2315, or P2316 are not set.
  3. Observe the Misfire Current Cyl. 1-6 parameters with a scan tool. The Misfire Current Counters should not be incrementing.
  4. Engine idling, perform the cylinder power balance test with a scan tool to isolate the misfiring cylinder. The engine speed should change when each injector is disabled.
  5. Operate the vehicle within the conditions for running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List.
scientia non olet · About Mike's Workshop Manuals