I crawled under the truck, the O2 sensor has 4 wires running to it, I know some O2's have heaters, if mine does, then that would account for 2 wires. I will be replacing the computer hopefully this weekend, as the internal voltage regulator is bad, might get to see if that will do anything to it.

 

ok... 4 wire: heater power, five volt refrence, ground, and the actual wire that sends info to pcm... I will find out what the specs for it are if I can find em... if your replacing that anyway do the replacing fist and let me know