Chart A2-5, Fuel Injector Circuit Check (Engine No-Start): Notes

Using a Sequential Multiport Fuel Injection (SFI) system, PCM controls each individual injector by providing a ground. With ignition switch in ON or START position (engine running), PCM will energize/de-energize fuel injector coil. With coil energized, a plunger is activated, allowing pressurized fuel to be sprayed through fuel injectors into combustion chamber where it is mixed with air from intake manifold, creating proper air/fuel mixture needed for combustion.

1. Checks for proper fuel pressure.
2. Checks if PCM is controlling ground path of fuel injectors.
3. Checks fuel injector for correct resistance.
4. Checks for voltage at fuel injector.
5. Checks for an open in ground circuit and for a faulty PCM.