Can the idle speed of a car with electronic throttle be adjusted?

The electronic throttle cannot be adjusted manually, and the idle speed is completely adjusted by the engine control system and cannot be adjusted by itself.

In fact, the electronic throttle is that the throttle body is completely controlled by the motor, so the throttle line between the throttle pedal and the throttle body is cancelled. Simply put, the driver's wishes will be transmitted to the engine controller through the position sensor of the accelerator pedal, and the engine controller will adjust the throttle body through the motor.

Extended data:

Whether it is electronic throttle or cable throttle, idle speed is self-adjusting. Due to the influence of carbon deposition, the idle speed will change. Take the electronic throttle as an example. After the throttle is completely released, the electronic throttle will not be completely closed, and there will be a certain gap for air to pass through, which is the air needed for idling.

If there is carbon deposit, it will block some gaps and the amount of air entering will be less. If no measures are taken, idling jitter or even flameout will occur.

At this time, the engine computer will control the throttle to open a little gap, so that the air intake will be more and the normal idle speed can be maintained. Although the computer can control the throttle to adjust the idle speed, of course, it will not be infinitely adjusted, only a small adjustment range. Adjust it to the limit, or the car will break down.

References:

Baidu encyclopedia-electronic throttle

References:

Baidu encyclopedia-idle speed