How to clean the throttle of Volkswagen's new Magotan?

The cost of cleaning the throttle valve in Volkswagen Magotan 4S shop is about 120 yuan, but it is much cheaper to buy the cleaning solution yourself. The price of a bottle of cleaning liquid is generally around 20 yuan. Throttle is a controllable valve that controls air to enter the engine. 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. It connects the air filter and the engine block, and is called the throat of the automobile engine. There are two kinds of throttle valves: traditional cable throttle valve and electronic throttle valve. The traditional engine throttle control mechanism is connected with the throttle pedal through one end of a pull wire (soft steel wire) or a pull rod, and the other end of the pull rod is connected with the throttle linkage plate. The electronic throttle mainly uses the throttle position sensor to control the opening angle of the throttle according to the energy required by the engine, so as to adjust the intake air.