After the throttle is cleaned, it doesn't work. What happened?

There are several possibilities! First, the idle valve is too dirty and the cleaning is not thorough; Second, there may be too much cleaning agent left in the cleaning process, which is not completely burned; Third, it is caused by poor sealing of throttle body; Fourth, there is no re-execution of computer data matching! It is recommended to go to the repair shop for inspection and handling!