Hi folks, need some advice. Have a '96 755. Fuel gauge was dead, replaced with new, now gauge is pegged to the right (full). Sender appears original, ohms out, (added fuel and ohm reading changed correctly). Tach works fine. I always thought that this problem was an open ground, but everything appears OK, though I might be missing something. Also checked the PTO magnet and it is testing bad. Could this be affecting my ground issue? Tractor starts and runs fine, lights work , though I am replacing a rear caution light (broken). The Tach and Fuel gauge lights do not work. Any ideas?