[V8] Dash Fuel light on/off randomly

[NIck Miller]

      So I just fixed my fuel gauge today, finally.  It was actually the
sender in the tank which had broken.  The flexible one, not the sheathed
one.
      I managed to wrestle the sender out this morning and soldered in some
new wires on both terminals.  I used a run of Thermostat signal wire by
removing the shielding and using the individual pieces.  Since I didn't have
any flexible stuff, I made the one which will move with about 4 windings to
make it work like a spring for movement.  It appears to work quite well.

The only issue I now has is after maybe a few hours today, the Fuel Level
Low light on the center readout comes on and random intervals and then will
go away also apparently at random.  Car had just been filled up this
evening, and the Gauge never showed bellow 17.5 gallons, but still the
warning light.

Does the Dash warning light use the same signal from the sender as the fuel
gauge, and does it take that signal and spit it in the Instrument cluster?
Or are there two seperate signals to troubleshoot?  Just curious about where
I need to go, I'll probably do some board swapping in the IC tomorrow
morning.  Thanks all.