What's the matter with the vehicle shaking when refueling the door?

When refueling the door, the vehicle jitter may be caused by the poor working of the vehicle spark plug or the blockage of the nozzle, which can be solved by replacing the spark plug or cleaning the nozzle, but the most likely thing is that the throttle is stuck due to excessive dirt or inaccurate air volume calculation, so just clean the throttle. The specific operation steps are as follows:

1. Remove the throttle hose.

2. Open the throttle.

3. Clean with a brush.

4. Spray with detergent.

5. Replace the hose and it's done.

Precautions for operation:

1. Use special carburetor cleaner.

2. Do not spray the apron of the throttle body.