Aem uego afr gauge question

[RocCitySlayer]

I have an Aem uego afr gauge, my problem is that it reads lower then link does. If link reads 14.2-14.8 my gauge reads 13.2-13.8. I unscrewed my pillar pod yesterday to see if there was a switch on the back of the gauge to switch it from p00 to p04 but there wasnt... Not sure if thats what needs to be done but iv read that a few different places. Does anybody have any suggestion on what the problem might be and how to go about making it log right?

 

[KevinRR]

Here a video on calibrating the AEM wideband http://www.dsmtuners.com/forums/articles-tuning-ecu/428702-ecmlink-linear-wb-calibration.html