Fuel Charging and Controls
WARNING: This page is about a different car, the 2004 Mercury Mountaineer and 2004 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The fuel charging controls consist of the following:
- fuel injection supply manifold
- electronic throttle body
- fuel injectors
- fuel pressure and temperature sensor
- fuel pulse damper
The fuel injection supply manifold:
- delivers fuel to the individual fuel injectors.
- receives fuel from the fuel supply line.
The electronic throttle body:
- controls air supply to the upper intake manifold by electronically positioning the throttle plate.
- is not adjustable.
- cannot be cleaned.
- is serviced as a complete assembly only.
The fuel injectors:
- are electrically operated by the powertrain control module (PCM).
- atomize the fuel as the fuel is delivered.
- are deposit-resistant.
- each have an internal solenoid that opens a needle valve to inject fuel into the lower intake manifold.
The fuel pressure and temperature sensor:
- measures the pressure and temperature of the fuel in the fuel supply manifold and sends these signals to the PCM.
- uses intake manifold vacuum as a pressure reference.
The fuel pulse damper:
- reduces fuel system noise caused by the pulsing of the fuel injectors.