Fuel Charging and Controls
WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The fuel charging and controls system consists of the:
- Electronic throttle body.
- Fuel rail.
- Fuel injectors.
- Fuel rail pressure sensor.
- Fuel pump driver module (FPDM).
The fuel charging and controls system is:
- A sequential, multiport fuel injection (SFI) system.
- Pulse-width modulated.
- Mass air flow (MAF) controlled.
The electronic throttle body:
- Controls air supply to the upper intake manifold by electronically positioning the throttle plate.
- Is not adjustable.
- Cannot be cleaned.
The fuel rail:
- Delivers fuel to the individual fuel injectors.
- Receives fuel from the fuel supply line.
The fuel injectors:
- Are electrically operated by the powertrain control module (PCM).
- Atomize the fuel as the fuel is delivered.
- Are deposit-resistant. Do not clean.
- Each has an internal solenoid which opens a needle valve to inject fuel into the lower intake manifold.
The fuel pressure sensor:
- Maintains constant pressure to the fuel injectors and throughout the entire system.
- Is spring loaded and operated by intake manifold vacuum.
The FPDM controls the fuel pump based on signals from the PCM.