Fuel Injector Wiring Harness: Description and Operation

PURPOSE
- Connects the engine wire harness to each injector or other electronic engine controls such as Throttle Position Sensor and Idle Air Control valve.

OPERATION
- Receives fuel injector signals from the Powertrain Control Module (PCM) and transfers the signals to the fuel injectors.

- Signals from the PCM determine the fuel injection sequence and duration each fuel injector will stay open to allow fuel into the combustion chambers.