•  Fuel supply is carried out through an integral transfer pump. This is a vane cell pump and is driven by the drive shaft of the supply pump.

•  The fuel passes from the transfer pump to the supply pump itself. This is contains three pump cylinders which are arranged radially.

•  The fuel metering valve is located in the supply channel between the transfer pump and the supply pump. The fuel metering valve operates electromagnetically and is controlled by the PCM.

•  The fuel metering valve affects the fuel flow to the supply pump, and thus controls the amount of fuel destined for the supply pump.

•  The fuel pressure regulator controls the output pressure of the supply pump. The fuel pressure regulator operates electromagnetically and is controlled by the PCM.