Engine Controls - Basic Testing: Summary

If no faults are found while performing BASIC TESTING , proceed to appropriate TESTS W/CODES in the ENGINE PERFORMANCE Section. If no hard codes are found in self-diagnostics or vehicle does not have a self-diagnostic system, proceed to TESTS W/O CODES in the ENGINE PERFORMANCE Section for diagnosis by symptom (i.e., ROUGH IDLE, NO-START, etc.), or intermittent diagnostic procedures.