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 similar in appearance and function to conventional gasoline fuel injectors; however, they cannot be interchanged. Power to injectors is controlled by Automatic Shut-Down (ASD) relay. Injectors are grounded through PCM. The PCM determines injector timing and pulse width.
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.