Fuel Injector Interface Module
The fuel injector interface module receives input from the powertrain control module (PCM). Based on the information received and programmed into its memory, the fuel injector interface module generates output signals to control the fuel injector solenoids. The fuel injector interface module contains a set of drivers for both the primary (forward) and secondary (rearward) fuel injectors. The fuel injector driver signals from the PCM are used to control both sets of output drivers in the fuel injector interface module. Based on the fuel selector switch input, the fuel injector interface module controls either the primary or both the primary and secondary fuel injectors.