Induction System

Sequential multiport fuel injection (SFI) provides the fuel/air mixture needed.

Eight solenoid-operated fuel injectors, mounted in the lower intake manifold, meter fuel into the air intake stream in accordance with engine demand.

The eight fuel injectors are:
- positioned so that their tips direct fuel just ahead of the engine intake valves.
- connected in parallel with the fuel pressure regulator.

On gas vehicles, fuel:
- is supplied from the vehicle's fuel tank by a high-pressure electric fuel pump mounted in the fuel tank.
- is filtered and sent to the fuel injection supply manifold.

A fuel pressure regulator on this fuel injection supply manifold controls the fuel-delivery pressure at a constant 269 kPa (39 psi).

Excess fuel supplied by the fuel pump, but not needed by the engine, is returned to the vehicle fuel tank by a fuel return line.