It is necessary to perform the Quick Test before continuing with this procedure. Failure to do so may result in incorrect diagnosis.
Note: If the vehicle was brought in with an emission compliance failure symptom, GO directly to Section 5; GO to EM1.
Note: If unable to access DTCs, or any scan tool communication concern exists, GO to QA1 in Section 5. For additional information on retrieving MIL and non-MIL DTCs, refer to Section 2, Diagnostic Methods (Continuous Memory Self-Test).
Note: If symptom is not listed, REFER to applicable Workshop Manual or GO to Z1 in Section 5 (for intermittent PCM system diagnostics).
Note: An injector circuit fault could result in unrelated DTC(s) being received from the PCM.
Note: For stalls on passenger car applications, engine may stall if left running while refueling. Advise customer to turn engine off while refueling to avoid contamination or damage to the EVAP system.
NOTE: Some applications have a PID that will indicate whether the PCM is reducing torque (095E b0), and if so, why the torque is being reduced (095Eb1-13).