How to clean the throttle body and idle valve?

If there is too much carbon deposit at the throttle and idle valve, which affects the normal operation of the engine, then in order to make the cleaning effect more thorough, most of them are cleaned by disassembling and washing, that is to say, the throttle and idle valve are removed and cleaned and wiped with a special cleaning agent, so as to ensure that the carbon deposit can be completely removed. In addition, according to the different shops and scales, the specific cleaning costs will vary greatly. Please consult the local specialized shops in detail for the specific costs.