What are the manifestations of dirty truck throttle?

The dirty performance of truck throttle is as follows: 1. When the throttle is dirty, the most obvious performance is that the throttle is blocked heavily and the speed is slow. At the same time, when you step on the accelerator at idle speed, the speed rises slowly and the response is slow; As soon as the throttle is released, the speed will drop immediately. 2. Throttle pollution will directly affect the accuracy and stability of engine intake. One of the most obvious problems is that idling may cause shaking and flameout, and the speed of the refueling door is not smooth. 3. The throttle valve is polluted to a certain extent, which affects the work of the engine and needs to be cleaned. At this time, the self-regulating air intake control of the driving computer may be incorrect, and the action of the engine may be affected.