Byd throttle circuit paper

Byd Song throttle position: the follow-up air main pipe is connected. BYD Song cleaning the throttle: Before cleaning the throttle, it is necessary to use the vehicle fault diagnosis instrument to detect the working state of the vehicle engine to confirm whether it needs cleaning; Turn off the engine, remove the accelerator and clean it with detergent. It should be noted that the metal on the accelerator surface of many automobile brands now has a special coating, so it is necessary to control the strength when cleaning to prevent the coating from being damaged. If the carbon deposit is serious, you can directly spray a proper amount of cleaning agent on the throttle valve, and then clean it after the cleaning components fully react with the carbon deposit.

Throttle is a device on the engine intake system, which is a circular steel plate with a shaft in the middle and controlled by throttle cable. Therefore, when we step on the accelerator, we actually increase the air intake, not the fuel supply. When the air intake increases, the computer will instruct the fuel injector to increase the fuel supply. When the engine is running at low speed, due to the small throttle opening and the small air intake (flow), some extremely fine dust (not filtered by the air filter) and exhaust gas in the engine valve chamber will be deposited on the throttle and the air intake of the idle speed control valve, resulting in the problems of slow throttle response (reduced actual air intake) and unstable idle speed.