Hook everything back up except the sender. Turn on the key & measure for
voltage @ the sender wires to ground. One should show voltage & the other
should be grounded. (Not home now to get colors) ground the one with voltage.
If the gauge still sits on empty you have a bad gauge. If there is no voltage
it could be a bad connection or a bad gauge. Let me know what yâ??all find &
Iâ??ll walk you through more diagnostics.
Peace,
Pat
Pat Horne
We support Habitat for Humanity
> On May 9, 2020, at 11:02 AM, RWM via Datsun-roadsters
> <datsun-roadsters@autox.team.net> wrote:
>
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
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