BI-Fuel Models

FUEL INJECTOR VALVES

NOTE: The descriptions and specifications contained here were in effect at the time it was approved for printing. Ford Motor Company reserves the right to discontinue models at any time, or change specifications or design without notice and without incurring obligation.

When in CNG or LPG mode, the Compuvalve instructs the Powertrain Control Module (PCM) to shut off the gasoline fuel injectors and shuts off the gasoline fuel pump through the ALT fuel relay module. The Compuvalve houses two types of injectors. The metal cased injectors are "high flow" and deliver fuel during cruise and acceleration. These are strictly on/off devices. The plastic cased injectors provide idle and trimming flow. These "low flow" injectors are pulse width modulated as required. The fuel is delivered to the intake manifold via fuel injector sleeves (F-Series) or a modified intake manifold (Contour).