Fuel Pump Operation

Fuel Sender Assembly (Typical):

This vehicle uses an electric medium pressure twin turbine pump.

The fuel pump is mounted to the fuel sender assembly inside the fuel tank. The fuel is pumped to the engine at a specified flow and pressure by the fuel pump. Excess fuel is returned to the fuel tank by the return pipe. The fuel pump delivers a constant flow of fuel to the engine even during low fuel conditions and aggressive vehicle maneuvers.

The electric fuel pump operation is controlled by the ECM through a fuel pump relay.