hey I have an inoperable fuel gauge in my Valiant. It's a gauge on a circuit board. I pulled it apart and it looks dark inside where the temp gauge looks tan? These run on the same voltage limiter and the temp gauge was working. I have grounded the wire coming off the tank at the fuel sender with no movement in the fuel gauge? Could I swap the gauges? Pretend the temp gauge is the fuel gauge just to see if it moves? Also when I checked the ohms at the float/sender it read zero? Any info would be great! Thanks!