Section 122 (Engine Controls - Basic Diagnostic Procedures): Summary
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2003 Mercury Sable, 2003 Mercury Marauder, 2003 Mercury Grand Marquis, 2003 Lincoln Town Car, and 2003 Lincoln LS. 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 - EEC-V - CNG, FLEX-FUEL & GASOLINE article. If no fault codes are found in self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES - EEC-V - CNG, FLEX-FUEL & GASOLINE article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).