How will the throttle react when it is dirty?

Reaction when the throttle is polluted: 1. When the throttle is polluted, the most obvious phenomenon is that the throttle is blocked, heavy and the speed is slow. When you step on the accelerator at idle speed, the speed rises slowly and the response is quite slow. One of the most obvious problems when a car relaxes the throttle is that it may shake, vibrate and stall when idling, and the throttle speed is not smooth. 2. Cleaning is needed to solve the problem of throttle pollution. The throttle pollution degree is different, and the influence will be different. 3. Before cleaning, make sure that the engine works normally. Otherwise, after cleaning, there may be a problem with the air intake regulated by the computer, resulting in the abnormal operation of the engine.