jiodaqmke

I have a 98 LS400 with approx 198K miles. About a month ago, I filled my car up with gas and the needle went beyond the full mark that it never been before. I thought that was strange, so after driving 130 miles, the fuel indicator still indicated FULL. That's when I figured I had an issue. I still have the issue. I monitor my fuel by approx. miles on the instrument panel. Anyone have ideas on how to fix this problem??