Yes, your post is a bit confusing, but if the 510 connection has loosened in your mod, it is likely not gong to read the tank. If it's under warranty, I would warranty it. If not, you may want to find out what a repair cost, or even consider doing it yourself if you are handy with tools and/or electrically minded.
I am not your gal for any of the latter part of my post however. I would have no idea how to proceed, but if it's under warranty, I would definitely do that.
Best of luck
Anna