Don't recall saying that. I advised on the different DIC's, and how to make the GTP one work in a GT.
This sounds like a fuel level sensor issue. Use your trip-odometer to keep track of how far you drive between fills.The main reason I had to get one ASAP, was that the stupid owner before me put a cheapo fuel pump in and now the gas gauge goes all over the place, one minute I have 3/4 tank, next minute its saying low fuel when it really is almost full.
I needed it to tell me how much fuel I have used so I don't look stupid running out of gas.