Im going right off the jumper harness on a p72 ecu. I have my power, ground however i need my signal where could i wire into on the harness to get the o2 sensor reading. I want to do this instead of running it off the old 02 sensor harness and cutting that up too.

 

So you are asking us for a pin-out diagram for your vehicle ?
If so go to http://www.phearable.net/tech they are listed there.