What is the reason why BYD f3' s idle speed suddenly rises to 2000 rpm and can't come down?

This situation of Pacific Auto Network may be influenced by the throttle idle speed regulating valve. After this happens, it is recommended to check the throttle. Throttle is called the throat of the engine, and its function is to adjust the air intake of the engine. If there is a throttle, the engine of the car will not work normally.

The throttle valve is installed on the intake pipe of the automobile engine. After the driver presses the accelerator pedal, the throttle opening will increase, and after lifting the accelerator pedal, the throttle opening will decrease. When the throttle opening becomes larger, the amount of air entering the engine may also increase.

After the sensor detects the increase of intake air, it will feed back the data to ecu. After treatment, ecu can adjust the fuel injection quantity of fuel supply system to increase the speed of automobile engine.

Most automobile engines basically use electronic accelerator, and there is no connection between the electronic accelerator and the accelerator pedal of the automobile. Many classic cars will use a cable accelerator, and there is a steel wire between this accelerator and the accelerator pedal of the car.

The advantage of pulling the throttle is that the reaction speed is fast, and you can step as much as you want. The advantage of electronic throttle is that ecu can accurately adjust the engine and improve the fuel rationality of the car. However, the response speed of electronic throttle is not as fast as that of cable throttle, and many racing cars still use cable throttle.