Section 11 (Engine Controls - Tests W/Codes): Summary
WARNING: This page is about a different car, the 1994 Mazda Navajo. However, it is still accessible from the selected car via links, so may be relevant.
If no service code or Code 111 (pass code) is present but drive-ability problem still exists, proceed to EEC-IV DIAGNOSIS BY SYMPTOM table. If driveability problem still cannot be located, go to TESTS W/O CODES article in the ENGINE PERFORMANCE section for diagnosis by symptoms or intermittent diagnostic procedures.