Fuel Injector Volume Test
- Remove fuel injectors together with fuel rail. Using wire, secure fuel injectors to fuel rail. Place end of injector to be tested in graduated cylinder.
- If using injector tester, connect injector tester between battery and injector. If not using injector tester, reconnect injector connectors. Connect jumper wire between injector to ECM wire and ground. See appropriate wiring diagram in WIRING DIAGRAMS 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.