Is the throttle the same as the valve?

Throttle is used to control the air intake of the engine, thus changing the engine speed. The throttle opening is controlled by the accelerator pedal in the cab. If the engine is an old carburetor, the throttle valve is a thin steel plate installed on the carburetor base. The carburetor is installed on the intake manifold of the engine, and the size of the air-fuel mixture entering the engine is controlled by the throttle. But this carburetor engine has been eliminated now. Now all automobile engines are electronically controlled fuel injection systems, commonly known as EFI engines. Its throttle valve is directly installed on the intake manifold, and its working properties are the same as those in carburetor. The only difference is that the throttle valve that melts oil and gas controls the size of the oil-gas mixture entering the engine. The throttle valve of EFI vehicle only controls the size of air entering the engine. Its fuel size is controlled by computer, sensor and actuator. It is directly injected into the cylinder of the engine through the fuel nozzle, mixed with air, and then ignited by the spark plug to do work. The fuel-air mixing ratio of fuel-air engine is determined by the technical condition of carburetor. The fuel-air mixing ratio of EFI engine is collected by sensors and transmitted to the on-board computer, and then calculated by the computer, thus controlling the actuator to supply oil accurately.