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Can an electric pump be installed if there is a manual fuel pump?

1 Answers

OJordan

07/29/25 1:26pm

An electric pump can be installed if there is a manual fuel pump, but an overflow valve must also be installed at the outlet of the electric pump because the flow rate of the electric pump is much higher than that of the manual pump. Therefore, an additional overflow valve should be installed at the outlet connected to the inlet (bypass) valve, and the pressure value can be adjusted. Below is the related introduction: Function of installing an electric pump: The vehicle can promptly supply the required fuel to each injector and cold-start injector. Introduction to the electric fuel pump: There are generally two types of electric fuel pumps used in electronic fuel injection systems: roller-type electric fuel pumps and vane-type electric fuel pumps. Typically, the roller-type electric fuel pump has an inlet at one end of the pump housing and an outlet at the other end. The electronic fuel pump is a device that continuously draws fuel from the fuel tank and supplies the fuel system with specified pressure and flow. Based on its function, the performance of the electronic fuel pump will directly affect the engine's performance.

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