My gauge has power and good ground. That all checks out, but the reading on the gauge is not correct. It hovers around the left side of the gauge which is the "down" side. When I go back and push the sending unit up and down, or trim the motor up and down it will fluctuate just a tiny bit on the gauge, but stays on the left side of the gauge.
My sending unit isnt stuck...free moving. Do these units get faulty sometimes?