How to solve the problem of idle speed increase after cleaning the throttle?

After clearing the throttle, let the computer learn again. Turn the key to the first gear before starting, and stay for 7- 10 seconds (it is written in the instruction manual of Dongan 465Q, and I have also practiced it. When the key stops at this gear, the idling motor will push the conical sealing head to the top. After the key is closed, it will retreat for a certain distance, and then it will always expand and contract within this distance). If it is still ineffective after learning, it means that the throttle valve body is too worn and can only be replaced.