Ok, so I am getting the odd issue of the gas gauge just dropping to empty then shooting back to more than what I know is in there. And every now and the, the check engine light will come on. I have borrowed a code reader from a friend of mine and it showed " p0462 fuel level sensor circuit low input" so I was doing some reading and it seems there are several things to check, I wassail wondering if someone could give me a checklist on what ii should do to figure this out? It is going to be me that is going to fix it, so id like to check everything I can before having to drop the tank....

Thanks in advance for any help.....