mopar410, you need to tell us what model and year your car is and whether you have a tachometer (Rallye dash). Early cars had a Vreg inside the fuel gage. What is this "electronic resistor" you talk of. Posting photos would help you a lot. I am guessing an electronic Vreg, but no need to guess.
For anyone getting a new sender, think long term. A 3/8" outlet might be better. One with a return line is needed for EFI. All exist and fairly cheap from $38 to $55. See ebay and Summit Racing.
