迈腾B8燃油泵控制电路的故障诊断与排除

Fault Diagnosis of Maiteng B8 Electric Fuel Pump and Its Control Circuit

迈腾B8电动燃油泵位于后排座位下的油箱内,电动燃油泵是燃油供给系统的重要组成部分,当电动燃油泵及其控制电路出现故障时,会导致发动机无法起动或起动后熄火的故障。本文从大众迈腾B8电动燃油泵的控制原理及电路入手,结合实际测试数据,总结电动燃油泵及其控制电路的故障诊断思路,以此来快速进行电动燃油泵及其控制电路的故障诊断,从而排除相关故障。

Maiteng B8 electric fuel pump is located in the fuel tank under the rear seat.The electric fuel pump is an important part of the fuel supply system.When the electric fuel pump and its control circuit fail,the engine will fail to start or stall after starting.Starting with the control principle and circuit of Volkswagen maiteng B8 electric fuel pump,combined with the actual test data,this paper summarizes the fault diagnosis ideas of electric fuel pump and its control circuit,so as to quickly diagnose the fault of electric fuel pump and its control circuit,so as to eliminate relevant faults.