Is the manual reset of BMW throttle hot or cold?

Hot car reset. The purpose of manual reset of automobile throttle is to make the engine better adjust idle speed and control fuel injection. In the case of cold car, all the indicators of the car are zero, and it is impossible to reset it manually. In the case of hot car, there will be data after driving, which can be accurately reset. Therefore, the manual reset of BMW throttle needs hot car reset. Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, and the combustion is successful.