Fuel Injector

To test system, see INJECTOR MALFUNCTION  diagnostic chart. On vehicles with V6 engine, a fault in the fuel injector circuit may set Code 51. To test system, see CODE 51 diagnostic procedures in TESTS W/CODES article.

To test injector, check resistance across injector connector terminals. If resistance is not as specified in INJECTOR RESISTANCE SPECIFICATIONS table, replace injector. If resistance is okay, remove injector. If nozzle is clogged, replace injector.