Fuel Injector Wiring Harness: Description and Operation

PURPOSE
Connects the engine wire harness to each fuel 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 and transfers the signals to the fuel injectors.

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