66 Dart gas Gauge

Tolman mike, in post #9 you will see I have already done that with nothing happening. I know I have a solid wire from tank unit to kick panel connection so I'm going to have to go inside up under dash. That's a weekend job after I get the car off the lift. I'm looking for where to go and how to trouble shoot from here. The tank and sending unit are new back when I bought it 6+ years ago and to be honest since I never drove the car I cant tell you if it worked ever since i had it. Its probably going to be back side of dash wiring or limiter but I just need to find easiest way to troubleshoot it.i haven't looked there at all. Hell I might not even have wires hooked up oan gauge! I'll find that out this weekend.
Rod
You can test the limiter by removing it, hook up 12v in and ground and measure the output. There should be a fluctuating reading between 0 and 7 volts.