The fuel metering system starts with the fuel in the fuel tank. An electric
fuel pump, located in the fuel tank with the gauge sending unit, pumps fuel
to the fuel rail through an in-line fuel filter. The fuel pump is designed
to provide fuel at a pressure above the pressure needed by the fuel injectors.
A fuel pressure regulator in the fuel rail keeps fuel available to the fuel
injectors at a constant pressure. Unused fuel is returned to the fuel tank
by a separate pipe. For further information on the fuel tank, in-line filter,
and fuel pipes, refer to
Fuel Supply Component Description
.
The accelerator control system is cable type. There are no linkage adjustments.
Therefore, the specific cable for each application must be used. The accelerator
cable is routed through the groove in the throttle body lever.
When work has been performed on accelerator controls, always make sure
that all components are installed correctly and that linkage and cables are
not rubbing or binding in any manner. The throttle should operate freely
without binding between full closed and wide open throttle.