Section 113 (Engine Controls - Basic Testing - 1.8L): Summary
WARNING: This page is about a different car, the 1996 Mazda Protege. 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 appropriate TESTS W/CODES - 1.8L article. If no hard codes are found in TESTS W/CODES , proceed to appropriate TESTS W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.