[XJNick]

Hi!

My '88 gas sending unit is:

0 ohms = Empty tank
69 ohms = Full tank

If you want to see what resistance is required to get the gauge to read, say full tank you can buy a Potentiometer (variable resistor). Plug on side of it to ground and the other to the fuel gauge "signal" wire. When you get the gauge to read full, remove the pot. and place an ohm meter across it's terminals. This will tell you the resistance required to make your gauge read full.

Hope that helps you
-Nick