Re: Gas Gauge problem
Hate to jump on somebody else's thread, but I've got a similar problem.
I converted (a couple of years ago) to in dash tach, which took the place where the gas guage was on my '69. The gas guage is now in center between new tach and speedo. It's been long enough that I don't exactly remember the conversion, but the gas guage has never worked and it was new, along with the sender. The needle stays way past full.
The guage is unmarked but has three prongs. The center one, which is to the top has a ground wire hooked to it. The left has a 12V and the right has a yellow. I believe the old guage worked, and also believe this plug was on it, but it may have had a splice by a previous owner that would account for the yellow wire instead of the beige.
I've got 12V between red & ground, but nothing with the yellow. Switching red to other side of guage where yellow plugs makes no diff............. guage still reads at about 3 oclock (way past full). What I don't understand from the above post is that with ONLY the red and ground connected, the guage goes way past full, and connecting the 3rd wire makes no difference. Maybe the problem is that I don't understand the feed of the circuit.
Sounds from the above post like I should have a voltage reading between the yellow (which should be beige) and ground, but I don't, so I guess I'll trace the yellow back to it's source if I can get my fat self buried in the floor deep enough to see under the dash.
That all having been said, are the wires positioned correctly on the guage??? Red to left, black to top/center, beige or whatever to right? (I'm describing them from actual side of the car)