故障现象一辆2009年产宝马X6车,因冷车起动困难到修理厂更换了6个喷油器后,冷车起动恢复正常,但是着车后发动机抖动,甚至偶尔会出现自动熄火的情况。故障诊断与排除根据故障现象,维修技术人员查询资料了解到,宝马车缸内直喷发动机在更换了喷油器之后需要进行匹配,否则就会出现发动机抖动的故障,严重时甚至会自动熄火。笔者尝试用道通MS908故障诊断仪对该 Symptom A BMW X6 car in 2009, due to difficult starting cold car repair shop to replace the 6 injector, the cold car back to normal, but after the car jitter engine, and even occasionally automatic flameout situation. Fault diagnosis and troubleshooting According to the fault phenomenon, maintenance technicians query information learned that BMW BMW direct injection engine in the cylinder after the replacement of the injector need to be matched, otherwise there will be engine jitter failure, even in severe cases will automatically stall. I try to use the road through MS908 fault diagnosis instrument on the