Nobody's replying in the tuning section so I'm going to post it here

So I'm trying to log through rear o2 and my AEM UEGO gauge is reading between 250 and 180? The formula I'm using is 2*(5x/1024) + 10. I tried changing it up and it didn't help at all. I'm using Golden's XML and the address is already in there for the rear O2 (238086B9). I learned from Golden that the standalone address is 8086B9, although I don't know how to use it to my advantage. My ROM number is 59590004. Here's what my setup looks like:



You guys think you can help me out here, I'm hella confused.

 

I'm pretty sure that afr needs to be measured before the cat. Rear o2 is after the cat and won't give a useful reading.

 

My guess is that he or she doesn't have a cat any more and has his or her wide-band in the second O2-sensor's location. Not optimal, but not atypical.

 

Neither of that. My O2 for the AFR is on the DP. Instead of using a serial to read AFR, I'm using the rear o2 ADC input. Here: http://www.evoxforums.com/forums/showthread.php?t=18511

Guessing none of you guys here have ever done that?

 

Is Golden tuning your car? Also which wire did you tap into under your seat?