Fuel System: Notes

WARNING: This page is about a different car, the 1998 Pontiac Grand Prix, 1998 Oldsmobile Intrigue, 1998 Chevrolet Monte Carlo, 1998 Chevrolet Lumina, and 1998 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For fuel system pressure testing, see BASIC TESTING - 3.8L article.

Manufacturer does not provide many individual system and component testing. For fuel system testing not listed, perform related DTC testing procedure. See DIAGNOSTIC TROUBLE CODES in TESTS W/CODES - 3.8L article.

NOTE: Retrieve DTCs and perform appropriate DTC test before performing FUEL INJECTOR CIRCUIT DIAGNOSIS. See TESTS W/CODES - 3.8L article. Also ensure all mechanical and ignition coil/module circuit malfunctions are repairs before performing FUEL INJECTOR CIRCUIT DIAGNOSIS.