I have a new wiring harness behind the dash. I have done an ohm test on the gas gauge and it is around 40 ohms. The sending unit shows ohms also when I move the float up and down 0-29. I have checked the power wire going to the gauge as well and it is 12 volts. I have a new after market gas gauge coming. Will try it to see if it works with the sending unit in the tank.