Ford Transit 2002 Owner's Manual page 825

The PCM calculates the time of fuel injection and the fuel injection quantity depending on
various input variables.
The specified quantity of fuel is injected into the respective combustion chamber through
the piezo-electrically actuated fuel injector(s).
The excess fuel is returned to the fuel tank through the fuel return line.
The fuel pressure regulator on the high-pressure outlet of the fuel pump regulates the fuel
pressure in the fuel rail.
Fuel pump
Item Part Number
1 -
2 -
3 -
4 -
5 -
The fuel pump is driven clockwise at half the engine speed by the timing belt.
The fuel pump has three pump elements, each offset from each other by 120 degrees.
The fuel transfer pump is incorporated into the fuel pump and is located on the drive
flange. The fuel transfer pump is a vane type pump.
The fuel metering valve is actuated by the PCM using pulse width modulation.
The fuel pressure regulator is located on the fuel pump. The fuel pressure regulator
operates electromagnetically and is actuated by the PCM.
Fuel rail
Description
Fuel pump fuel return port
Fuel pressure regulator
High-pressure fuel supply line port
Fuel pump fuel supply port
Fuel metering valve
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