Fuel System
Fuel is stored in the fuel tank mounted across the vehicle behind the passenger compartment bulkhead. Fuel is drawn by the fuel pump from the tank and then supplied to the rail via a filter. Fuel injectors, controlled by the ECM are installed in the fuel rail on each side of the intake manifold. The amount of fuel injected into the engine is controlled by the ECM. A cross-over pipe connects the fuel rail together at the front of the manifold. A test valve in the rail allows the fuel rail to be pressurized and de-pressurized during the servicing and troubleshooting procedures. A pressure regulator on the rear of the fuel rail controls the pressure in the fuel rail. A return line directs excess fuel from the pressure regulator back to the fuel tank.