Overfilling usually occurs just after filling, and when filling, it is easy to make the gasoline run along the pipeline to the activated carbon canister. The carbon canister that collects gasoline vapor will release excess gasoline vapor from the vent after invading the gasoline. When the air conditioner is in external circulation, the gasoline odor will enter the car. The only way to deal with it is to open the internal circulation and drive for a period of time.
