TY poorman. i changed thermostat and got my heat back. I do have a digital multimeter. Where should i start first? which O2 is the primary, in the exhaust manifold area. Too much electrical crap in these new vehicles. The older vehicles were much easier to work on and diagnose, lol. I'll find it eventually, if i dont pull all my hair out first, or empty my wallet, lol.

 

Ok, i went to a friend of the family who is excellent at diagnosing auto issues. First he scanned it again, then monitered the diff. systems, noticed that the O2 sensor 1 was not reading anything at all. We then used his probe tool, to check the O2 sensor in question. It had very low voltage readings at 1.8 volts on 2 wired and 2.3 on another wire, there were 0 fluctuations in voltage at anytime while running and while pressing on the accelerator. The tool reads at 500ms speed and again 0 fluctuations at all, just flat-lined. Is this what you meant about a lazy O2 sensor? Still no check engine light, but problem seems to be getting worse. when step on the gas pedal, there is just no throttle response and no acceleration. I am hoping that this O2 sensor is the issue, and not a transmission, Gas is going even faster now as well. The plugs i took out were the original plugs at 179k miles, the gap was around 100 thousandths, i put the new plugs at 44 thousandths, then i added some lucas fuel system cleaner through it. Shortly after the problem started. Would that make the O2 sensor go or act weird?

 

Changed the O2 sensor today. The old one looked like hulk got a hold of it and smashed it, and it was all white with corrosion. Still no change in problem. Another waste of time and money. It either has to be a clogged catalytic converter or the tranny is going. I have no way of testing those things. Any suggestions?