Wax

I see a lot of old posts about starting issues. Mine started yesterday when I filled up the tank. I did add a little past the shutoff which i know I shouldn't have, and since then when I first start it it's taking 5-10 seconds to turn over. Once it starts it's 100% perfectly fine, but if it's cold, it cranks like crazy. If I run it a while, shut it off, and then start it, it's fine. Seems to only be after it sits a bit. I was also smelling gas a decent amount as well.

I've since ran through about 1/4 tank and it's still doing it.

I had an 03 Malibu that did the same thing after fillups, but then stopped after the 1st or 2nd time we started it.

I'm guessing it's somehow evap related, maybe the charcoal canister, but not sure how to "fix" it.

Any ideas would be appreciated.