Is there gasoline passing through the throttle?

Fuel does not pass through the throttle.

The throttle valve is a part of the air intake of the engine-with the gradual opening of the accelerator pedal, the throttle valve also opens to a certain angle. The larger the angle, the more air enters the combustion chamber.

Fuel-The electric fuel pump in the fuel tank will pump the fuel into the fuel pipeline, pass through the fuel filter and finally reach the fuel guide rail. The fuel injector is installed on the fuel rail. The engine control computer controls four injectors of each cylinder, and turns on the four injectors in turn according to the set order. The fuel with a certain pressure in the fuel rail is injected into the cylinder by the open fuel injector in a direct injection control mode, and mixed with the air entering at the same time in proportion to do work.

Fuel with a certain pressure in the fuel rail is injected into the intake pipe at the root of the intake valve of the cylinder through the opened fuel injector, and mixed with the air entering at the same time in proportion to do work.