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故障现象一辆96款韩国大宇乘用车,其发动机怠速有时正常,有时不正常,缓加油时顺畅,急加油时回火放炮(像乱缸一样),踩加速踏板后有时会熄火。发动机运转时仪表板上的发动机故障指示灯亮。故障诊断首先读取故障代码。将点火开关置于ON位(发动机不运转),用跨接线跨接在故障诊断插座的A端子与B端子,根据仪表板上的发动机故障指示灯闪亮的次数读得故障代码为12和23。查对该车的故障代码表得知,
Symptoms A 96 Korean Daewoo passenger car, the engine idling sometimes normal, sometimes not normal, smooth when the oil is slow, when the fuel is sharp (like junk cylinder), sometimes after the accelerator pedal will turn off. The engine fault indicator on the dashboard is on while the engine is running. Fault diagnosis first read the fault code. Turn the ignition switch to the ON position (the engine does not run), connect the jumper wires to terminal A and terminal B of the fault diagnosis socket, and read the fault codes 12 and 23 according to the number of times the engine fault indicator on the instrument panel flashes . Check the car’s fault code table that,