Problem Resolved
Alright, i am a total dumb arse. I am not sure what the initial problem was with the sending unit when it was installed in the tank, but i have resolved the problems from yesterday. You see, i was not aware that this company also makes sending units for water tanks. I read on their website that you should submerge the sending unit in WATER to test it. Well, that is what you do with the sending units designed for water, but obviously water and gasoline are quite different. I thought that was odd, but since that is what is said on the website, i went ahead and filled a bottle up with water. Last night I was reading and found out that if the sensor senses water in the tank, it will peg out to past full. So, everytime i submerged the sensor in my bottle full of water, i was causing the sensor to peg out at 5 volts as it is designed to do.
Dipped it in a tank of gas this morning and it works correctly.
Now that I admit my stupidity, please feel free to poke fun.