Fuel Injectors
WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, and 1995 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
Fuel injectors are electric solenoid valves controlled by PCM. PCM determines when and length of time injectors should operate by switching ground path on and off. During start-up, battery voltage is supplied to injectors through Automatic Shutdown (ASD) relay. Battery voltage is supplied by charging system after engine is operating. When ground is supplied to injector by PCM, armature and pintle inside injector move a short distance against spring and open a small orifice. Since fuel is under high pressure, a fine spray is developed.