0411 PCM voltage going to O2 sensors?

[Snipescastle2]

Hello everyone! I have a question with regards to 0411 PCM's. As many of you know, I converted my Trans Am with a 0411 PCM for my LT1. I have been having issues with my O2 sensors. the bank 1 sensor 1 keeps throwing a code for sensor inactivity, I have changed these multiple times now, and the problem persists.
while I was trouble shooting the sensors, I used my multimeter, on millivolt setting, probing the pins going to the PCM, it wasn't reading the usual .100mv to .900mv reading, I was getting 4.5 volts, is it possible my PCM could be bad? I tested the sensors off the car, they increase and decrease in voltage from .100mv p to 1.0volts up and down. could be possible I have made a wrong pinout change?
I'm going to check the harness at the PCM (disconnected) to see if the harness has voltage at the O2 Sensor High/Low pins.
this car is driving me nuts, should have been a slam dunk conversion, but I've obviously done something wrong......
let me know what you guys think.
Thanks!
Ben Smith