I couldn't find anything referencing my issue, so here goes?
My '03 Pathy's fuel gauge is "stuck" on full...it wavered a bit down to half, but when I ran out of gas while showing 3/4 I knew I had a problem. Then the "check" light came on showing "P0462 fuel level sensor A circuit Low Input" on the OBD II. Research showed the tank sensor had bit it. When I disconnected the connector from the tank the fuel gauge still showed full. Shouldn't it go to empty with no load on it? I suspected a short, so using my Nissan Service Manual I traced and eliminated the possibility of shorts and grounds in the harness. Using the on-board meter diagnostics I verified the fuel meter was not the problem. So I went ahead and replaced the tank sensor. The gauge moved down to about 3/4, then after a couple of stops and starts it went to full and the check light came on again, with the same code showing. Anyone had any experience with this? I would hate to just replace the whole meter assembly and have it not be the solution, and waste more money...I know it could be an intermittent problem in the wiring but it seems unlikely..Thanks for any help!! Jim