Fuel Injector Volume Test
NOTE:
Injector volume specification for Optima & Magentis (Canadian), Rio and Sedona is not available from manufacturer.
- Remove fuel injectors together with fuel rail. For fuel injectors removal, see FUEL DELIVERY PIPE & FUEL INJECTORS under FUEL SYSTEM in REMOVAL, OVERHAUL & INSTALLATION article. Secure fuel injectors to fuel rail. See Figure. Place end of injector to be tested in graduated cylinder.
- If using injector tester, connect injector tester between battery and injector. See Fig 1. If not using injector tester, reconnect injector connectors. Connect jumper wire between injector to ECM wire and ground. See WIRING DIAGRAMS article for wire colors.
- Turn ignition on. Time injector flow and measure volume. Injector flow should be 4.4 oz. (130 ml) per minute. If volume is not as specified, replace injector. Use NEW "O" rings when installing injectors.