jayrex Posted June 26, 2016 Share Posted June 26, 2016 Doing a bit of tuning with AccessTuner. I'm finding my AFR values on the Stock O2 sensor to be 0.2 to 0.3 lower(richer) than my AEM UEGO Wideband. WB sensor is located in the top of the downpipe. The offset seems to be linear and consistent across all effective stock O2 AFR ranges. Both sensors are relatively new. Regardless of which is correct. Should I try to adjust the stock O2 sensor calibration to match the WB values? Just to have logging values be consistent on the WB between open and closed loop? Link to comment Share on other sites More sharing options...
bnguyenbb6 Posted June 26, 2016 Share Posted June 26, 2016 It really doesn't matter. The O2s are in different positions, different orientations, different locations, different ages. A .2-.3 difference is negligible. Your stock o2 isn't even going to be part of the equation when you are tuning OL fueling with the wideband. Link to comment Share on other sites More sharing options...
jayrex Posted June 26, 2016 Author Share Posted June 26, 2016 True, I'll just leave it be. Like you said, Open Loop and Closed Loop are different animals anyway. Thanks for the reply. Link to comment Share on other sites More sharing options...
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