Have an AEM 30-0334 and MPVI3 and I am not seeing OBD Controller Unknown under my channel list and can't get any of the info into my scanner for logging. ECU is a P59 from a 2005 2500HD. Anyone run into this issue? The gauge itself is working great, tried moving the ECM and Pids around to see if it would show up when I would repoll and nothing shows up. Saw someone mentioned that this doesn't work on older ECMs and I don't understand why since the MPVI is reading directly from the AEM...
On an unrelated (hopefully) note, the scanner refuses to log any MAF frequency logs, I have my MAF showing under my channels and I see the frequency fluctuating while I drive, but nothing is being logged. I used to goat rope garage table and have tried using three different inputs for three different tables (to cover all the MAF frequency outputs) and again, nothing. I tuned the MAF table by watching my Hz and matching it to what I saw on the gauge and got it very close. I'd say from 3500 hz to 4500 hz it was about 4% rich so I'd .96X the values, 4500-5500 was 3% rich so I'd .97X the values, etc. Now it's all .99 lambda to 1.00 lambda except at the top, 8k and up, where it is a .98 because looking at two different screens while doing a WOT pull is not safe.