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故障案例一辆2011年产长城腾翼C30车,搭载GW4G15发动机及西门子发动机控制系统,累计行驶里程约为3万km。据驾驶人反映,该车行驶中加速挫车。故障诊断接车后试车,当车速达到80 km/h,发动机转速达到2 600 r/min时,挫车严重。用故障检测仪检测,无故障代码存储。根据故障现象推断可能的故障原因有:点火系统故障,包括火花塞、点火线圈及相关线路等故障;燃油供给系统故障,包括喷油器、燃油泵、供油管路等故障及燃油品质问题;曲轴位置传感器、凸轮轴位置传感器及其
Case of failure A 2011 production Great Wall Tengyi C30 car, equipped with GW4G15 engine and Siemens engine control system, accumulated mileage of about 30,000 km. According to the driver reflected that the car speeding setback car. TROUBLE DIAGNOSIS After the car was put on a test run, when the car speed reached 80 km / h and the engine speed reached 2 600 r / min, the car was severely damaged. Detected with fault detector, fault-free code storage. According to the fault phenomenon, it is concluded that the possible causes of the fault are: fault of the ignition system, including spark plug, ignition coil and related lines; failure of the fuel supply system, including faults of fuel injectors, fuel pumps and fuel supply lines and fuel quality problems; crankshaft Position sensors, camshaft position sensors and their