Since picking up the car, there has always had a slight smell of gas in the cabin. Since all the connections in the trunk were loose, I tightened them and it helped. I know there was a thread on the black box in the dash behind the left most instrument. I have yet figured out a way to get those unusual clips off the air ducts... but anyway. I found a 1/4 diameter rubber braided hose loose by the wiring harness (that had a gas smell). I noticed there also was an empty nipple on the charcol canister, so I figured I had found a male looking for a female (true love) , hoping that would help the smell. Having the two connected seems to have made it worse. And by the way, what is the large plastic container in the left front wheel well, which the charcol filter hose and this little hose connect? An expansion chamber?
Any ideas on getting rid of this smell? It's getting to the point where I need to always drive with one window partially open. and up here in Washingon that gets chilly.

Thanks much,