Induction System

Sequential Multiport Fuel Injection (SFI) provides the fuel/air mixture needed for burning fuel in the cylinders.
The solenoid-operated fuel injectors, mounted in the upper intake manifold, meter fuel into the air intake stream according to engine demand.
The ten 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.
Fuel is supplied from the fuel tank by a high-pressure electric fuel pump mounted in the fuel tank. Fuel is filtered and sent to the fuel injection supply manifold.
A fuel pressure regulator on the 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.