Short story long. Haven't had instrument lights in a while and have tried to fix it with no luck in the past. Finally got around to pulling the intrument panel again to track down the issue and found that the last light in the series wasn't grounded right and now have dash light again but the fuel/temp gage has stopped working now. In troubleshooting this I've hooked a small external battery to the gage to see if the gage worked. It does. But doesn't have power from the wiring harness. If I understand the system right, the power wire goes to the fuel gage and has a jumper wire that goes to the temp gage. Fuel gage 2 wires. Temp gage 3 wires, one of which is the jumper from the fuel gage so I assume this is the power wire since it goes to both gages. Temp gage other 2 wires read the resistance from the temp sensor. Fuel gage other wire hooked to fuel tank level sensor for ground resistance to operate gage. That is how I understand the system. Now, where does the power come from for the power wire? I've checked the fuses, even changed a couple out just to be sure. Still no power. Since the fuel and temp is in the same pod and powered by the same wire I assume that if the fuel gage doesn't work then the temp gage won't work either. Which is why I'm hesitant to start the car to get a temp reading. Any ideas? Gage worked before I pulled the panel and fixed the lights.