So, still having the issue. I am thinking wiring is still an issue. What signal should I look for before and after the o2 sensor? I noticed my rear o2 sensors get warm to touch when the ignition is on but the fronts do not? Is that normal?

also, Is the o2 wiring part of the main harness or does it have a separate harness?

I also still have the evap code, which I will look into after i am done with the o2 sensor.

Here is the electrical diagram.