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 and control system consists of the:
- electronic throttle body
- fuel injectors
- fuel charging wiring
- fuel injection supply manifold
- fuel pulse damper
- fuel pressure and temperature sensor
The fuel charging and controls system is:
- a sequential, multiport fuel injection (SFI) system.
- pulse-width modulated.
- mass airflow (MAF) controlled.
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 intake manifold by electronically positioning the throttle plate.
- is not adjustable
- must not be cleaned
- is serviced as a complete assembly only. For additional information, refer to THROTTLE BODY .
The fuel injectors:
- are electrically operated by the powertrain control module (PCM).
- atomize the fuel as the fuel is delivered.
- are deposit-resistant and self-cleaning.
- each have an internal solenoid which opens a needle valve to inject fuel into the lower intake manifold.
The fuel pulse damper:
- reduces fluctuation of the fuel pressure during injector operation.