How often do you clean the speed throttle?

If the subject wants to know, "How often is the fast throttle cleaned?" The relevant contents are as follows:

Subba is a medium-sized car owned by SAIC Volkswagen Skoda. Its length, width and height are 4869mm, 1865mm and 1489mm, respectively, and its wheelbase is 2841mm. The body type is five doors, two compartments and five seats, and the gearbox is seven-speed dual clutch with a top speed of 265438+. Throttle is a controllable valve that controls air to enter the engine. There are two kinds: traditional cable throttle and electronic throttle. After the gas enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, which will be burned to do work. This combustible mixture is connected with the air filter and the engine block.