Thank you for the reply! No, the issue has not corrected itself as of yet
My garage definitely smells like a garage!! Yes, I inspected all the lines (as best I can by eye and ear) and everything looks and sounds normal. I did not look on top of the tank, and I did not inspect the fuel filler neck or related vent lines as of yet. I hate to pull the box off or drop the fuel tank as a shot in the dark, but I don't mind doing it if I know that's where the problem is. I pulled off the EVAP purge solenoid and couldn't blow through it (I had read they are "normally" closed until told to open by the computer, so I'm assuming it is ok. I just took the charcoal canister off to see if I could blow air through that and get any dirt out of it. I'm not giving up yet!!