206 gasoline smell help

friends, I have a lpg in my car for a year. Gas smell comes into the car for the last 1 week. Not always but it happens twice a day. I have changed the pollen filter did not improve.

I think there might be a leak in the filter records, but for another reason .. wait a bit, act according to the answers, buddy
respects

By the way, I recently installed an open air filter, but it doesn't draw very good air because of its location. Could it be because there isn't enough air?

remove the back right seat, open the plastic cover, you will see the shaman, see if it is wet around, there is a seal on its cover, it may be old. If you want to be sure whether it is there or not, if you have either a full tank or a half tank of gasoline, shake the car inside and shake the gas in it.

I also say, look at the exhaust.