I just got my computer re flashed with Osiris but not on a dyno. I plan on buying an AEM UEGO and log AFR readings using a Cipher cable. To do this I'm guessing that I have to connect the gauge wires to the ECU. I will be taking the wide-band sensor that comes with the gauge and put it where one of the O2 sensors connects to the test pipes.

How do I connect the AEM UEGO to my comp?? Can it be done??
Is there any other way to record AFR on an 03 coupe (no OEM wide-band).

 

As you said you don't have wideband O2 sensors on the car. You will not be able to replace any of the four stock O2 sensors, you will have to weld in a 5th bung and use that. The wideband won't connect to your ECU at all - just ignition power and groud. The AEM UEGOs have an RS232 output and there is software that can log the O2 data. The issue, however, is matching up the wideband log with any other meaningful logs that you create.

If you want real logging capabilities ditch the stock ECU and go with something more capable.

 

my tune right now is a base tune. it can be imoroved with afr data logging. Il
I thought the AEM UEGO can go into any O2 sensor location. I don't have any O2 sensors on ny ARTs b/c I broke them a while back. Right now I have bolts in that location. I can't put the Bosch sensor that comes with the AEM UEGO in that same location?? Are they not the same size??

 

If you are not worried about CELs then you technically can. However, you will have emission codes stored in your ECU. The new sensor will physically screw in. The point I was trying to make is you can't feed the ECU with a wide band signal when it is set up for narrow band.