What is the function of throttle cleaning?

Cleaning the throttle has the following functions: 1, removing carbon deposit, improving intake and injection accuracy, improving fuel efficiency and prolonging engine service life; 2. Failure to clean the throttle for a long time will lead to the wrong throttle opening, and impurities in the air will enter the engine combustion chamber; 3. Both results will lead to abnormal engine operation, mainly manifested as unstable idle speed. When driving, the throttle suddenly opens and the power will decrease.