Fuel Injector: Description and Operation

Injector Driver Module
The Injector Driver Module controls power to the fuel injectors based on information received from the PCM The Injector Driver Module receives two digital control signals from the PCM the Feel Delivery Control Signal and the Camshaft Position signal The Fuel Delivery Control Signal is used by the Injector Driver Module to control injection timing and injection duration The CMP signal provides synchronization to the engines first and the fifth injector (firing order, cylinders number one and four) The Intector Driver Module verifies that Fuel Delivery Control Signal and CMP occur at valid timing intervals for synchronization. Relay Box