What's wrong with throttle pid (Proportional Integral Differential) regulation exceeding the limit?

Throttle pid (Proportional Integral Differential) regulation overrun is throttle body wear. The throttle body is worn, or the throttle connecting wire is in poor contact, which needs to be inspected. When decelerating, the vibration caused by too fast torque PID adjustment speed and the vibration caused by mechanical vibration resonance. Adjust the reaction speed of torque PID to eliminate vibration.