Alternative Fuel Control Module (AFCM)

ALTERNATIVE FUEL CONTROL MODULE (AFCM)






Contour
The Alternative Fuel Control Module (AFCM) allows communication between the Compuvalve and the Powertrain Control Module (PCM). The AFCM communicates desired operating mode, ALT or GAS, to the PCM. This allows information to be shared between modules and facilitates troubleshooting. When ALT mode is selected and operating conditions are satisfactory, the Compuvalve, through the AFCM, signals the PCM to turn off the gasoline fuel injectors. During alternative fuel operation, if the fuel source drops below a specified amount, the Compuvalve through the AFCM signals the PCM to turn on the gasoline fuel injectors while the Compuvalve shuts off alternative fuel. This allows smooth switching of fuel systems.

F-Series
The AFCM is incorporated within the Compuvalve and the fuel system control strategy is identical to Contour.