rwjohnson06

On an original 1980 Camaro, what is the ohm scale which the original fuel guage operates on? Thanks in advance for any help.

angel71rs

I think most GMs after the late 60s worked with sending units that were 0 ohms empty, 90 ohms full.

CamaroRS_SS

The sending units are pretty reliable, usually it is a fault somewhere in the wiring. The usual suspect is a bad ground commonly caused by corrosion. Have you traced your wires from the tank to the instrument panel?

rwjohnson06

I recently installed a full vehicle wiring harness, and tail end is my next step. My stock fuel guage works... idk how acurate it is lol... but who cares 20 gallons on a 10mpg car ur fillin up ever 4 days anyway. haha. I was swappin out the stocker dash for a pro comp setup and dont know which fuel gauge to purchase due to the 3 different ohm ranges you can purchase. I ran by a Chevy Truck page which mentioned a 240 - 33ohm sender, but I want to make sure and have something absolutely confirmed for my 80 Camaro. Thanks again.

rwjohnson06

By the way the here is the page for the three ohm setups, maybe itll help. "http://egauges.com/vdo_mult.asp?Type=Fuel_Level&Series=Pro_Comp"

11secgen

Zero When Empty.