System Description
Fuel Supply System:
TYPE
The fuel delivery system is a Sequential Multi-Port Fuel Injection (SFI) type.
PURPOSE
Supplies engine with correct amount of fuel at correct pressure.
CONSTRUCTION
Fuel Delivery system consists of a fuel tank, fuel pump, fuel filter, fuel pressure regulator, fuel rail, six fuel injectors and associated lines.
OPERATION
Fuel is pumped from the fuel tank to the fuel injectors through the fuel filter, fuel rail and the pressure regulator, by the electric in-tank fuel pump.
Vacuum assisted regulator maintains pressure at injectors by allowing excess fuel to return to tank via return line.
The PCM controls the amount of fuel injected by controlling the length of injector "on time", this period of time is known as "injector pulse width".
The injectors are fired individually, with each injector firing once per intake stroke.