B4000 Regular Cab 4WD V6-4.0L OHV (1997)
Fuel Injector: Description and Operation
COMPONENT
Injector
FUNCTION
Amount of fuel is controlled by length of time injector is held open. Injector is operated by 12 volts from PCM power relay and ground signal is
controlled by PCM.
REMARKS
Fuel injector is a normally closed and solenoid operated valve that meters fuel flow to engine. If injector has been replaced, it is necessary to clear
learned values contained in Keep Alive Memory in PCM by disconnecting battery or PCM for five minutes.
