Fuel pump is the technical term of auto parts industry. As one of the basic components of the fuel injection system of the electric injection vehicle, located inside the vehicle's fuel tank, the fuel pump works during start-up and engine operation. If the engine stops and the ignition switch is still ON, the hfm-sfi control module closes the power source of the fuel pump to avoid accidental ignition.
The function of fuel pump is to pump the fuel from the fuel tank and transfer it to the fuel supply pipeline after pressurization.