I got a new gas cap, cleared the code and it came back on. I did look at the fill neck/line going to the gas tank. I do see a spot that is wet. It is right at a joint between two pieces. Looks like there is a rubber line going from the top, near the actual fill, then that connects to another piece in the middle that looks like it's either metal or hard plastic. Thats where the leak is. it's right at the frame. Where the two connect.
I was looking at replacement parts and it looks like i have to buy the whole part, not just the section that is leaking.
and one other thing. i replaced the fuel cap and can't get the holder ring on the new cap. is there a trick to get it on?