Fuel route from tanks to engine
Leaves fuel tank and divides into two paths.
One flows through the low-pressure pump and then returns to the fuel tank as motive flow.
The second flows through the fuel/oil heat exchanger to the fuel filter. Then flows to the Fuel Metering Unit and passes through the high pressure pump and back to the FMU.
The FMU sends the fuel to the injectors or the CVGs.