Chart A2-5, Fuel Injector Circuit Check (Engine No-Start): Notes
With ignition switch in ON or START position (engine running), PCM will energize/de-energize fuel injector solenoid 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.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- Checks if PCM is controlling ground path of fuel injectors.
- Checks resistance of fuel injectors.
- Checks for an open or short to ground in Black or Black/Red wire between fuel injectors and PCM, or for faulty fuel injectors or PCM.