故障现象一辆2012款奥迪A6L(C7)车,搭载型号为CLX的2.5 L发动机,行驶里程约为13万km,因EPC灯报警,发动机抖动,加速无力而进厂检修。故障诊断连接故障检测仪(VAS 6160A)对车辆进行检测,发现1缸、2缸和6缸都存在“检测不发火”“喷油器电路电器故障”“气缸压缩比”“喷油器对搭铁短路”的故障代码。为了验证故障代码是否真实存在,维修人员先记录下故障代码,然后清除故障代码,试车(此时车辆为热 Fault phenomenon A 2012 Audi A6L (C7) car, equipped with a 2.5L engine model CLX, mileage of about 130,000 km, due to EPC lights alarm, engine jitter, speeding into the factory overhaul. Fault Diagnosis Connect the fault detector (VAS 6160A) to detect the vehicle and found 1, 2 and 6 cylinders exist. “Detect no ignition”, “Injector circuit electrical fault”, “Compression ratio of cylinder” “Injector short to ground ” fault code. In order to verify the existence of fault code, maintenance personnel first record the fault code, and then clear the fault code, test (the vehicle is hot