Section 03-04D: Fuel Charging and Controls, 7.3L Diesel Engine | 1996 F-250, F-350 and F-Super Duty Workshop Manual |
The fuel charging wiring connects the engine wire harness to each fuel injector (9F593) and other electronic engine controls such as the injection control pressure (ICP) sensor, injection pressure regulator (IPR) and injector drive module (IDM). The fuel charging wiring receives fuel injector signals from the powertrain control module (PCM) (12A650) and transfers the signals to the fuel injectors. The signals from the powertrain control module determine the fuel injection sequence and the duration each fuel injector will stay energized, to allow fuel into the combustion chambers.