论文部分内容阅读
故障现象一辆2012年生产的新帕萨特NMS轿车,装配CGM 2.0TSI发动机,搭载6速双离合变速器,行驶里程约为1.3万km。据驾驶人反映,该车发动机故障灯常亮。故障诊断起动发动机,发现组合仪表上的发动机故障灯常亮。连接VAS5051B,进入网关安装列表,发现发动机电子设备(发动机控制单元)中存在故障;进入发动机电子设备并检查故障代码,发现存储有故障代码P2015,其含义为“进气歧管流道位置传感器/开关电路,范围/性能”。踩下加速踏板使发动机转速保持在3 000 r/min以上,发现真空转换装置的拉杆(图1)没有任何动作,而在正常情况
Trouble A new Passat NMS sedan produced in 2012, equipped with a CGM 2.0TSI engine and equipped with a 6-speed dual clutch transmission, has an approximate mileage of 13,000 km. According to the driver reflects the car engine fault light is always on. Troubleshooting Start the engine and notice that the engine fault light on the instrument cluster is on. Connect the VAS5051B to the gateway installation list and find a fault in the engine electronics (engine control unit); enter the engine electronics and check the fault code and find fault code P2015 stored, meaning “Intake manifold runner position sensor / Switch Circuit, Range / Performance ”. Depressing the accelerator pedal kept the engine speed above 3000 r / min and found that there was no movement of the drawbar of the vacuum changer (Figure 1). Under normal conditions