What are the manifestations and hazards of dirty throttle?

1. When a car refuels, it will feel that the throttle is stuck heavily and the speed is very slow. Idle step on the accelerator, the speed rises slowly and the response is slow. Release the accelerator when driving, and the speed will drop immediately. 2. The unclean throttle will affect the accuracy and smoothness of engine intake. The most obvious problem is that idling may cause jitter or even flameout, and the throttle growth rate is unstable. Attachment: Cause of dirty throttle: 1. Mainly the environment inside the car, the air intake filter is not well filtered, and the surrounding environment is dusty. 2. The type of engine oil is not good and the evaporation is large. It is caused by oil and gas and impurities in the crankcase. 4. After the flameout, the throttle should not be very tight, and some dust will be inhaled, and many a mickle makes a mickle.