Bomba_MC

I am requiring a resistor to help add some accuracy to my fuel gauge. I was advised that I need to add a resistor. Which resistor size do I use for a 58 corvette. The gauge works fine however its a repro sending unit. When the tank is full , I t currently reads around 3/4 tank. When the tank is empty I rests at 1/4 tank. I could just leave it but would prefer to at least make it somewhat more accurate.

Also, if anyone could provide information on how that resistor is wired in and where, or even a pic or 2 would be greatly appreciated.

Thank you all.

JohnZ

This may be helpful.

plaidside

I have never heard of using a resistor to correct a fuel gauge reading. I have heard of people using a resistor for a temperature gauge correction.
My thought would be if you use a resistor to correct your low reading when fill, then it would have an effect on the entire range and cause your low reading to indicate high.
I would remove the sender and with a good ohm meter check the resistance from full to empty.
IIRC it should be between 0-30 ohms.
Joe

Redbird

This seems to work!

59BlueSilver

This looks like the same unit I installed. Worked fine just wasn't accurate. When it read 1/2 tank, it was down only 4 gallons. A couple of times bending the float arm finally got me there.

steampunk c1

Adding a resistor will make it more inaccurate as zero is empty so just bend the float arm till you get it right from empty till half full.