lol
I was just dealing with this yesterday.

I was getting exhaust fumes and a heavy smell of gas and I thought it was the tranny hole
it was driving me crazy

and then i noticed my back seat was down and I didn't have the privacy cover on, keep in mind I have a hatch.
put the seat up and the privacy cover.
and it made the difference. now I don't smell shit

gonna prob get a new rubber trim for fuel pump lid cover