Further explanation of the wire routing is needed. Is the white wire attached to the stud in the center of the sending unit or one of the hold down/mounting screws around the edge? Center stud is the proper place for the white wire. The black is a ground. Try doing a search using the search button directly above this thread for “Gas Gauge”. Probably a thousand or more posts to read.


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
‘65 Chevy Biscayne (Emily)
‘39 Dodge Business Coupe (Clarence)
“I fought the law and the law won" now I are a retired one!
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USAF 1965-1969 Weather Observation Tech (I got paid to look at the clouds)