Fuel Cap

I have a 2003 Honda Oddessy. The engine light came on and the OBD reader indicated it was an emissions problem. It has happened once before and the fuel cap was loose and I tightened it =--problem solved. This time I checked the cap, it was loose and I tightened it as tight as possible. Light stayed on, (was told it would go out after 80 ignition turn ons as Auto Zone is not allowed to erase error code) Light has not gone out and the fuel cap is loose again. As I took it off there were a couple of "pop sounds" which were coming from the fuel tank area. Any suggestions?

There are many evap emissions codes. Posting the code you have would help.

Maybe replace the fuel cap since it has "come loose" twice? Get a dealer cap! and then see if the light goes out.

Thank you for your suggestion. The problem has been rectified. I just needed to tighten the fuel cap with more rotations than the cap instructions indicate (3) I didn't include the OBD number as I had it checked out of town and didn't write it down. However, it included the fuel cap as a problem which I had experienced before.