Ok,I would like to hook this Thing up to Checkmy AFR's...so the Question is what can be done with the Stock O2 sensor?.Can I let it Hang?.
If I disconnect the Stock O2 is there a Wire that I can connect to the Wideband sensor to read Narrowband for the Stock ECU?.
I hope someone knows this stuff,it is New to me.,Thanks guys,STYX.
Oh PS,I only have the Stock O2 Bung Position For now.I am getting another Bung to put on the DownPipe about 36 inches away(roughly) from the Turbo to Run the Wideband.It hasn't got here yet,But I need the car Runnng..(paying Penalty on the rental of the garage.went over the alloted Rental time).Thanks again.

 

I have the AEM wideband UEGO sensor running closed loop target AFR on the AEM EMS. The bung is welded on about 12" downstream of the stock 02 bung, which is now plugged.

I'm not sure the stock ECU will be able to read the wideband UEGO sensor at all. Why don't you run your car on the stock O2 sensor? Then, you can use a gauge to read and/or log the output of the wideband sensor to tune a piggyback computer.

 

the aem uego has a narrow band output too, just wire it to the stock o2 sensor cable

 

the narrowband voltage range is correct but you will need to reprogram the lamda curve vs voltage as the output is semi linear rather than the old 'almost" on off output