How to solve Santana Zhijun's automatic speed increase?

As for the problem that the idle speed rises when you put the clutch into gear, the reason may be that the carbon deposit blocks the idle speed passage, causing the throttle or idle motor to be stuck or out of its adjustment range, or that the throttle is stuck because of too much carbon deposit, which will lead to the increase of idle speed after receiving oil. After cleaning the throttle, the idle speed of oil collection will increase, which has happened many times. This is because when cleaning the carbon deposit, the carbon deposit solution enters the throttle shaft, causing the throttle shaft and the valve body base to get stuck. It is also possible that the throttle valve cannot completely return to the initial position set by the manufacturer because it is not initialized after cleaning, and the throttle valve has a large opening, which leads to the phenomenon of high idle speed. It may also be caused by air leakage in the air intake system. You can check from these aspects.

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