So I just decided to just return the sensor and make sure I got the correct one this time. Still went with the Denso sensor which seemed to be a well built sensor anyways. Also installed extension in post o2 since I haven't had codes deleted during my base tune. Seems to do the job instead of having to buy an expensive emulator. I also got a chance to check out my upstream and see why I had a problem and it looks like one of the wires were bare and prob caused a short or ground out. I pulled the old sensor off and since I have to wait, I taped and cleaned up the wires and reinstalled for now. Been keeping a close eye on my o2 voltage and fuel trims and besides the fact that I'm running a bit rich it isn't too bad. Will keep a close eye on it u till I'm able to install the new sensor..
