[Roadsters] Fuel indication issues

[RWM]

This has been discussed before, but here are the indications:

Fuel gauge does not budge off empty 

Fuel sender resistance shows 34 ohms as installed, with tank less than half full

Fuel sender resistance when removed varies fairly linearly from 47 ohms (bottom) to near zero ohms (near top), then open circuit when the arm forces the wiper off the rheostat windings

Fuel harness is delivering 7.6 volts, measured with the yellow and black connectors removed

Shorting the fuel harness to itself (yellow to black) does not change the fuel gauge indication

Ammeter works, temperature gauge works

Ideas? Dash harness connector?

Thanks.

- Bob Mann, '68 2000 Solex