The fix is to add 33 ohm resistor to the sending unit. I just wanted to post this fix. After three guages and three sending units I ended up with the wrong sending unit. Long story and you know how it goes. So before I take the tank out again I used this fix. Fuel Guage 0-30 ohms and a 0-90...

Hi guys, I need a little info on how I check the fuel gauge / fuel sender. My guage doesn't work. Can anyone tell me how the circuit is wired? Does the + wire go to the guage first and then the sending unit? If I ground the wire to the sending unit directly will the guage read full or empty...