With CNG

Natural Gas, Part 1:

Natural Gas, Part 2:

The fuel control system on this engine is separate from the gasoline fuel system and has unique parts. The compuvalve meters fuel to the natural gas fuel injection supply manifold. The fuel injection supply manifold distributes the fuel to each cylinder through the fuel injector sleeves. When the alternative fuel in the fuel tanks is depleted the compuvalve will automatically switch the engine fuel to the gasoline fuel system.