故障现象一辆瑞风商务车,配备G4JS现代发动机,累计行驶里程约为32万km,发动机大修后行驶过程中,该车出现发动机偶发性抖动、加速无力的故障现象,发动机故障灯异常点亮。故障诊断接车后,首先试车,确认故障现象属实。利用故障检测仪调取故障代码,读取的故障代码为:P0100——空气流量传感器线路不良;P0350——点火线圈线路报警。发动机怠速工况时抖动明显,初步分析故障原因是发动机缺缸。清除故障代码后试车,故障依然存 Fault phenomenon A Ruifeng commercial vehicle, equipped with G4JS modern engine, the cumulative mileage of about 320000 km, the engine overhaul after the process of driving the car sporadic jitter, acceleration weakness phenomenon, the engine fault light abnormal lit. Troubleshooting After the car, the first test drive to confirm the fault phenomenon is true. Take fault code using fault detector, read the fault code: P0100 - poor air flow sensor circuit; P0350 - ignition coil line alarm. Engine idling conditions jitter significantly, the initial analysis of the cause of the malfunction is the lack of engine cylinder. Clear the fault code after the test, the fault remains