Feng Fan cleaned the throttle himself.

Parking jitter means that the throttle is dirty, just wash it. Generally, it costs about 100 yuan in a small shop, but it's very expensive in a 4S shop, and 300 yuan can't get it. You can also clean it yourself. Let me tell you a simple and not easy way to hurt your car. Open the engine hood, find the joint between the air filter and the throttle, unscrew the clamp with a screwdriver, and pull the air filter tube off the throttle, and you can see the throttle.