电喷轿车怠速不稳有时是一种非常难排除的故障,尤其当故障点出现在一些隐蔽地方时更是如此,做为一名奥迪服务站的技术人员,我接触过大量的怠速不良车,现选出一例,希望能对广大维修人员有所启示。 一辆奥迪A6 2.6L MPFI发动机出现起动困难及怠速不稳故障,首先用V.A.G1551故障诊断仪查阅故障存储器,氧传感器当前显示混合气稀,并且根据加 EFI car idle instability is sometimes a very difficult to troubleshoot, especially when the point of failure appears in some hidden places even more so, as an Audi service station technicians, I have exposed a large number of idling cars, Now choose a case, hoping to enlighten the majority of maintenance personnel. An Audi A6 2.6L MPFI engine start-up difficulties and idle instability failure, first with V.A.G1551 troubleshooting access to the fault memory, oxygen sensor currently shows the mixture is diluted, and according to plus