Chnage meter to from 200 to 20 ohm scale. Put leads together to see about zero, what resistance is in the leads. There are 2 different fuel gauges, 20 ohms, and 13 ohms. Temp gauge should be 20 ohms plus the leads resistance. Its no so common fro the wire to break away from a post creating open gauge. More common is wire insulation failed, wire shorted to beam. Check resistance from post to can. That should be open.
