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故障现象一辆2009年出厂的江淮同悦轿车(采用4G13S1 1.3L发动机),在行驶过程中有时会出现加速时发动机反应迟缓,有时甚至会自动熄火的现象。故障诊断经过了解得知,该车曾因上述故障在其他修理厂换过燃油泵、燃油滤清器、火花塞和进气歧管绝对压力传感器,维修过发动机ECU,但故障仍未能排除。连接故障检测仪调取故障代码,有关于进气歧管绝对压力传感器、几个缸失火及喷油器线路故障的故障代码。清除故障代码后拆除后排座垫,在燃油泵线路上接入万用表后对该车进行路试。
Symptom A 2009 factory JAC with Wyatt sedan (using 4G13S1 1.3L engine), sometimes in the course of the car when accelerating slow reaction, and sometimes even auto-off phenomenon. Troubleshooting Knowing that the car had been replaced by other pumps in the other repair shop, fuel filters, spark plugs and intake manifold absolute pressure sensor repair engine ECU, but the fault still can not be ruled out. Connect the fault detector to retrieve the fault code, there are fault signals on the intake manifold absolute pressure sensor, several cylinder misfire and injector line fault. Remove the fault code after the removal of the rear seat cushion in the fuel pump line after access to the multimeter on the car road test.