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Fuel Gauge OHMS for 550EFF?

  • Thread starter Thread starter Colorado85gs550
  • Start date Start date
think of the resistance as a bottle neck, either way you go there is still resistance
 
I might be stuck with disassembly of the stock gauges and pulling the fuel gauge out and making a custom gauge out of it...................
 
does it not look feasable to flip the resistor contacts on the sender?
 
I don't know what they look like at the sending unit.........
 
no not the wires the whole contact so the 0 ohm is on top instead of bottom (or vise versa) not switching wires, you have to physically make the float touch the 0 when full and 90 when out or vise versa
 
but if there are 2 wires coming out of the tank, wouldn't you think that one would be attached to the 6 ohm resistor contact and the other attached to the 97 ohm resistor contact?

so that if I connect the wire for the 6 ohm contact to the wire for the 90 ohm in the gauge and vice versa I should get what I'm looking for........
 
your fuel gauge isnt a resistor, it is a variable resistor offically called a potentiometer or POT
analogin_potentiometer.jpg
This is what the fuel gauge is esentially but remove the ground and you have your circuit. There is no set resistance the "middle" of the circuit has a bunch of contacts in a line, all with different increasing resistances that as the float arm moves it increases or decreases.

I hope this helps, i am off to bed.

If your still confused i can continue explanations and try to find some better pictures. Or just google search how a fuel sender works, or more info on poteniometers

Good luck
 
I'm going to Autozone to buy an Auto Meter 0/90 ohm gauge today and I'm going to MAKE it work:D

I'll keep you posted as to how it works out!!
 
lol if worst comes to worst just remember that full is empty and empty is full!
 
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