Engine Controls - Basic Testing - Non-Turbo: Summary

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to the TESTS W/CODES - NON-TURBO article. If no diagnostic trouble codes are found in self-diagnostics, proceed to TESTS W/O CODES - NON-TURBO article for diagnosis by symptom (i.e., ROUGH IDLE, NO-START, etc.) or intermittent diagnostic procedures.