What happened to the unstable idle speed of Dongfeng Shen Feng ax7 new car?

The unstable idle speed of new cars is mostly related to dirty throttle. For electronic throttle cars, when idling, the throttle is opened at a small angle under the control of the computer to enter a small amount of air. If there is carbon deposit or other dirt at the throttle, the actual air intake will decrease, resulting in unstable idle speed. Dirty throttle may be related to many factors, such as driving habits, road conditions and oil products. Consumers are not advised to drive at low speed for a long time. For a car with manual transmission, consider slightly raising the shift point.