Section 12 (Engine Controls - Basic Testing): Summary
WARNING: This page is about a different car, the 1997 Jaguar XJR. 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 SELF-DIAGNOSTICS - 4.0L article. If no hard codes are found in self-diagnostics, go to TESTS W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.), or intermittent diagnostic procedures.