Disconnect the vacuum hose on the throttle body, so that the intake pipe will leak and the mixture will become rich. Is this thinner? for

If the intake air is pressurized, it will release pressure from here. If it is inhaled naturally, unfiltered air will enter from here. It may not have much effect on the concentration of the mixer. However, inaccurate intake measurement will affect the fuel injection quantity, thus affecting the engine performance. At the same time, unfiltered air will also make the engine wear prematurely.