[Healeys] Fuel Gauge Not Working BJ8

[STOCKLAND at aol.com]

I have done some rewiring of the instruments and now find that the gas gage 
 is not working.  Have voltage to the gage but may have reversed the leads  
to the sender unit.  When the tank if full, does the sender unit show the  
least resistance?  If so, can I short across the instrument poles  going to 
the sender unit to show a full tank and see if the needle moves?
 
Thanks,
 
Jon
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