Fuel Charging And Controls

The fuel injection supply manifold (9F792):

• delivers fuel to the fuel injector.
• receives fuel from the fuel supply line.

The throttle body (9E926):

• controls air supply to the upper intake manifold (9424) by positioning the throttle plate.
• connects the accelerator cable (9A758) and the speed control actuator cable (9A825) (if equipped) to the throttle lever.
• is not adjustable.
• cannot be cleaned.

The fuel injector (9F593):

• is electrically operated by the powertrain control module (PCM) (12A650).
• has an internal solenoid that opens a needle valve to inject fuel into the lower intake manifold.
• atomizes the fuel as the fuel is delivered.
• is deposit-resistant. Do not clean.

The fuel pressure relief valve (9H321):

• is used to inspect and relieve fuel pressure.

Fuel Charging Wiring Connections

Fuel Charging And Controls

Refer to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.

Idle Speed Adjustment

Powertrain Control/Emissions Diagnosis (PC/ED) manual