Section 91 (Engine Controls - Basic Testing - 3.0L): Summary
WARNING: This page is about a different car, the 1995 Mitsubishi Montero, 1995 Mitsubishi Diamante, 1995 Mitsubishi 3000GT, and 1995 Dodge Stealth. However, it is still accessible from the selected car via links, so may be relevant.
If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to TESTS W/CODES - OBD-I (3.0L) article. If no hard codes are found in self-diagnostics, proceed to TESTS W/O CODES - 3.0L article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.