What should Jetta do if the idling speed is unstable after cleaning the throttle idling motor?

First, the idle valve is too dirty and the cleaning is not thorough;

Second, there may be too much cleaning agent left in the cleaning process, which is not completely burned;

Third, it is caused by poor sealing of throttle body; Fourth, computer data matching has not been re-executed.

It is recommended to go to the repair shop for inspection and handling.

Idle state refers to the working state when the engine is idling. When the engine is running, if the accelerator pedal is completely released, the engine will be at idle speed. When adjusting the idle speed, the speed should not be high and low, otherwise it will cause early wear and tear to the engine, so it is best to adjust it in the automobile maintenance department.