fuel gauge problems

You might want to pull the instrument cluster and check the circuit board. I recently had to replace the left one that controls the fuel guage because it was burnt. My guage works now , but is showing about a 1/4 tank lower than what is in it! Still trying to figure out what is causing this.
I cleaned up the circuit board months ago. soldered some loose pins on the connector. everything was working until the fuel gauge stopped. I am going to replace the voltage limiter. That could be the problem you're having. I've heard those were pretty unreliable even when they were new. The one I have coming is supposed to be an upgrade from the old ones. They said it was one of the reasons the fuel gauge was never accurate back in the day. At least that was the selling point. I guess I'll find out when it gets here. I may pull the cluster again, and see if all the pins are still ight on that connector. I don't think that's the problem, because the gauge works when I put a resistor on the sending unit wire. Time will tell.