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故障现象一辆2014款奔驰进口E200车,搭载M274发动机,累计行驶里程约为2.3万km。车主反应,该车起动困难,起动着机后发动机故障灯点亮,但发动机运转良好。故障诊断用故障检测仪(DAS)对全车控制单元进行快速检测,发现发动机控制单元(ME)中存储有故障代码“P034100进气凸轮轴(气缸列1)的位置传感器存在功能故障”和“P001685进气凸轮轴(气缸列1)的位置与曲轴位
Trouble phenomenon A 2014 Mercedes-Benz E200 car, equipped with M274 engine, the cumulative mileage of about 23000 km. The owner reaction, the car started difficult, start the engine fault lights lit, but the engine is running well. Fault diagnosis Detecting the entire vehicle control unit with the fault detector (DAS) and found that the engine control unit (ME) has stored the fault code ”P034100 intake camshaft (cylinder bank 1) position sensor there is a function fault And "P001685 intake camshaft (cylinder row 1) and crankshaft position