What car has an idle control valve and an idle motor?

The electronic throttle you mentioned is a potentiometer, and the voltage signal generated by it will be transmitted to the computer (ECU). After being judged by the computer, the opening angle of the electronic throttle valve will be controlled, so as to control the air intake. The idle motor is continuously closed-loop controlled at idle speed, which can keep the engine of the car at the lowest speed (which can save fuel ~), but there will be idle reserve.

Idle motor is a throttle motor, only one of which receives the signal from the accelerator pedal position sensor, and the other receives the signal from the computer to control idle speed. If the idle motor is damaged, the vehicle will not start normally.

The reason is very simple: except for some cars, there is no fuel injection without air intake, but even if there is fuel injection, you can't burn without air, and you will only flood the cylinder.