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Old 05-01-2013, 12:23 AM   #7
VetteVet
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Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,723
Re: Help with wiring boyd rear fuel cell!?

Quote:
Originally Posted by K10Dream69 View Post
thank you for all the responses, after troubleshooting it today I finally got the wiring correct.

upon doing more research, I saw other members say a lot of times the float on the leveler gets stuck, and if your gas gauge goes way past full chances are that's the problem. So I took out the leveler out of the fuel cell inspected the float and put it back in, fired the truck up still with the same issue. it is not labeled positive negative, but from what I saw on other posts was the big one in the center is positive, and the small one on the side is negative. When I took it out of the fuel cell neither of them were labeled. But the negative had no connection underneath so it had to be the ground

So I finally have the connection right, why will my factory fuel gauge still not work?

Any other ideas?
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The biggest cause for the fuel gauge going past full is that the tank sender wire is disconnected from the circuit. Or the sender is not grounded to the frame.
Look on your fuse panel on the right or left end about center and you should see a terminal marked "FUEL", Is there a tan wire connected there? If not that is where the center terminal from the tank sender is supposed to go. If the wire is there then Pull it off and run a temporary wire from there to a good ground and turn the key on and watch the fuel gauge. It should go to empty or below. This checks the wiring from the fuse panel to the gauge.


Plug the tan wire back onto the terminal and check it for a broken spot back to the sender. Then check the sender for a good ground to the tank and the tank for a good ground to the frame.

All the wiring from the fuse panel fuel terminal back to the sender and to the frame is on the negative side of the circuit. Do not apply any positive voltage to this circuit. It could result in an explosion inside the fuel tank
Post back with the results. VV
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