Excuse me, what are the symptoms or fault codes when the computer board and electronic throttle are broken? The more detailed, the better.

The question is too general. The car computer is badly damaged. If the on-board computer is damaged, many faults may occur. Generally, the fault light will be on and the fault code will appear. As for the electronic throttle, the fault will be obvious. It's usually difficult to get into the car. Idle jitter is easy to stall and the acceleration is weak. In another case, the mechanical part of the electronic throttle is worn, which makes the throttle unable to close normally, resulting in excessive engine idle speed. Basically, I hope I can help you