What is the reason for the high idle speed after cleaning the throttle?

What is the reason for the high idle speed after cleaning the throttle? The reasons for the high idle speed after cleaning the throttle are: 1, the throttle is stuck and closed loosely; 2, idle speed control valve failure; 3, water temperature sensor failure; 4. Air leakage in the air intake system; 5, air conditioning switch and power steering gear pressure switch failure. The method of cleaning the throttle valve is: 1, turn off the ignition switch and remove the negative electrode of the battery; 2. Dismantle the throttle pipe, air inlet hose and the screw for fixing the throttle valve in turn; 3. Clean the throttle with cleaning agent, and wipe the parts that cannot be cleaned with cotton thread. Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, which will be successfully formed after combustion. @20 19