Section 123 (Engine Controls - Basic Testing): Summary
WARNING: This page is about a different car, the 1994 Jeep Cherokee. 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 TESTS W/CODES - 2.5L & 4.0L article in this section. If no hard codes are found in self-diagnostics, proceed to TESTS W/O CODES article in this section for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.