Induction System
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 sequential multiport fuel injection (SFI) provides the fuel/air mixture needed for combustion in the cylinders. Fuel injectors are solenoid operated and:
- are mounted in the lower intake manifold.
- meter fuel into the air intake stream in accordance with engine demand.
- are positioned so that their tips direct fuel just ahead of the engine intake valves.
- are connected in series with the fuel pressure sensor.
- supply fuel from the fuel tank with a fuel pump mounted in the fuel tank.
A variable fuel pressure is maintained across the fuel injectors by the electronic returnless fuel system.