I have found a ton of videos and post about afr disappearing when starting to record, but mine starts logging showing values and when I stop the recording it disappears. I am using AEM 30-0300, the mpvi2 pro set up, 2004 ls 4.8 with a ss2 cam in a square body pickup. I used the begginers tuning school book to set it the hysteria. The afr pid works great and stays in the recording. The truck is running really well, but I would like to have this last part figured out. This is the first cam I have ever tuned so a newb. Sorry if I missed the post about this issue, but I did look first. I am more than happy to be redirected to it if so.