How does Wuling Hong Guang S match the fixed throttle when replacing the computer refueling door?

Generally speaking, the car runs at a low speed for a long time, and the engine has too much carbon deposit, which leads to insufficient combustion, white smoke, engine jitter, reduced power, too fast speed and sudden flameout. And fuel consumption will also increase. It is suggested that the engine, throttle and spark plug should be cleaned, and the power will return to normal after matching and debugging.