Section 1 (Engine Controls - Tests W/Codes - 2.5L): Introduction
WARNING: This page is about a different car, the 1990 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
Ensure all steps in the BASIC TESTING article have been followed. If no faults were found while performing the BASIC TESTS, proceed with self-diagnostics. If no service codes and only pass codes are found during self-diagnostics, proceed to H - "Engine Type" TESTS W/O CODES article for diagnosis of intermittents or driveability symptoms.