Is the valve fully closed or has a gap after the electronic throttle stops fire?

Valve and throttle are not the same thing, and their functions and installation positions are also different. Valve, also called air valve, is divided into intake valve and exhaust valve. Its function is an important control component (including gasoline engine and diesel engine) for internal combustion engine to complete four-stroke "intake, pressure, power and exhaust" working cycle. It is installed in the engine cylinder. The throttle is me ... 3977