Pump, Fuel Injection: Description
The pump is driven by the timing belt. Pressure is generated independently of the injection process. The pump is lubricated with diesel fuel and is not responsible for fuel injection timing. However, there is a mark on the high pressure fuel pump sprocket that must be aligned with a mark on the timing belt cover whenever the high pressure pump, sprocket, or timing belt have been removed. The high pressure fuel pump has a filter in the inlet side that is not serviceable.