What's the matter with the mechanical failure of Audi fuel pump?

1 Answers
LaMax
07/29/25 11:27am
Generally, the mechanical failure of the fuel pump is caused by the damage of the fuel pump itself or the problem of the control unit. The following is the relevant introduction about the fuel pump: 1. Introduction of the fuel pump: The fuel pump is a professional term in the auto parts industry. It is one of the basic components of the fuel injection system of EFI cars, located inside the fuel tank of the vehicle. The fuel pump works when starting and the engine is running. If the engine stops and the ignition switch is still in the ON position, the HFM-SFI control module will turn off the power supply of the fuel pump to avoid accidental ignition. 2. Function of the fuel pump: The function of the fuel pump is to suck the fuel out of the fuel tank, pressurize it and then deliver it to the fuel supply pipe, and establish a certain fuel pressure in cooperation with the fuel pressure regulator.
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