13 Audi a4 accelerator screw will leak if it is missing one?

It will leak air. According to the information released by car home, in 13, one missing Audi a4 throttle screw means that the throttle is loose and air will leak. Throttle is a controllable valve that controls air to enter the engine. After the gas enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, and the combustion is successful. It connects the air filter and the engine block, and is called the throat of the automobile engine.