What is the function of the accelerator in a manual transmission?

[EliDella]

Throttle is used to control the opening of the throttle valve. The larger the throttle opening, the more air the engine intakes. Below is some extended knowledge about the accelerator: Accelerator: The accelerator is not directly used to control the fuel injection volume of the engine. The throttle valve is located at the front section of the intake manifold and is referred to as the engine's throat, as it controls the engine's air intake volume. When the driver presses the accelerator pedal, the throttle valve opening increases, leading to a rise in the engine's air intake volume. After the air intake volume increases, sensors can detect this change and transmit signals to the ECU, which then commands the fuel supply system to increase the fuel injection volume. This process ultimately raises the engine's rotational speed.