Jetta, what should I do after cleaning the throttle nozzle? The previous 7 oils washed 1 1 oil.

Normal means that the injector has been cleaned for a long time. However, in the actual maintenance operation, the sealing performance of the cleaned injector becomes worse and the fuel injection quantity increases sharply, which can be seen from the fuel injection pulse signal. If the syringe is used for too long, cleaning is not recommended, and it is best to replace it with a new one.