Why don't you suggest washing the throttle?

It is not that washing is not recommended, but that it should not be washed often.

The throttle opening is not reset after cleaning, resulting in unstable idle speed and high engine speed. This situation can make the vehicle disappear after driving for a period of time. Therefore, the cleaning of the throttle should not be arbitrary and the cleaning frequency should not be too frequent. It is recommended to clean the throttle every 20,000-40,000 km, otherwise excessive cleaning will lead to the gradual cleaning of the special coating of the throttle inner cavity, and the inner cavity will lose its coating, which is more likely to cause greasy adhesion.

Extended data:

Precautions:

In the process of cleaning the throttle valve, the motor equipped with the throttle valve should be rotated upwards, and then cleaned with oil cleaning agent, so as to prevent the oil cleaning agent from flowing into electronic equipment such as the motor along the flap shaft, thus damaging or shortening the service life of the throttle valve.

In case of stubborn carbon deposition, spray a little more chemical cleaning agent to soften it. It is forbidden to scrape the inside of the throttle valve with hard objects. Once the throttle valve is damaged, it cannot be repaired.

The removed throttle valve will have a rubber sealing ring. Remember to remove the throttle valve before cleaning it. The oil cleaning agent is very corrosive to avoid damaging the rubber sealing ring.

Baidu encyclopedia-throttling

People's Network-The air difference makes the car "sore throat", and the throttle is dirty before the mileage.