How to clean the electronic throttle?

The cleaning method of electronic throttle is as follows: 1. You need a bottle of carbon cleaning agent, open the front hood and find the engine and air filter tube; 2. Loosen the hairpin screw on one side of the air cleaner pipe near the engine, and the electronic throttle valve is connected with the engine. 3. Spray the cleaning agent on the electronic throttle, wipe it with deerskin cloth, and repeat the operation; 4. You can use a cotton swab to clean the parts that are not easy to wipe, and turn the car key to the on position to continue wiping; 5, until the black substance inside is cleaned and wiped clean, and then dry for a while. Finally, refit the steam filter hairpin tube and tighten it, and the cleaning work is completed.