Please consult an expert. I am a 2006 Fox 1.8AT hand-in-one Recently, I found that I was shaking badly when I was idling. The idle speed is over 700, so is the engine, and the throttle is not dirty.

The general causes of engine idling vibration are as follows: first, the throttle is dirty and the throttle body has carbon deposition; Second, there is air leakage in the booster of the brake pump. Slight air leakage generally has little effect on the brake, so sometimes it is not felt. Third, the idle valve is dirty and blocked. The blockage of idle valve is often easily overlooked. Because as long as it is started and the speed exceeds the idle speed, it will not work. However, it will have an impact in the case of deceleration and fuel cut-off mode.

Look at this. Generally, check whether the idle valve is dirty, the throttle valve, and finally the brake pump booster.