Hao Rui's early shift will cause the car to rush forward even if it doesn't step on the accelerator. This is because ECU actively refuels to improve the speed in order to prevent flameout, so the vehicle accelerates itself.

ECU electronic control unit, also known as "trip computer" and "vehicle computer". In terms of use, it is a special microcomputer controller for automobiles. Like ordinary computers, it is composed of microcontroller, memory, input/output interface, analog-to-digital converter and large-scale integrated circuits such as shaping and driving.