Engine Controls - Basic Testing - V8: Summary

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to appropriate TESTS W/CODES article listed below. If no hard codes are found in self-diagnostics, proceed to appropriate TESTS W/O CODES article in this section also listed below for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.

• TESTS W/CODES - EEC-IV (5.0L) (for Mustang)
• TESTS W/CODES - EEC-V (4.6L) (for Cougar & Thunderbird 4.6L)
• TESTS W/CODES - EEC-IV (4.6L) (all other 4.6L)
• TESTS W/O CODES - EEC-IV (5.0L) (for Mustang)
• TESTS W/O CODES - EEC-IV (4.6L) (for Crown Victoria, Grand Marquis, Mark VII & Town Car)
• TESTS W/O CODES - EEC-V (4.6L) (for Cougar & Thunderbird 4.6L)