I have a Gen 3 and just got hp tuners and when i pull up the channels on vcm scanner it seems like i should have more. I am referencing the video from GRG youtube video GM Gen 3 MAF Tuning Intro, https://youtu.be/ki9xIW-4YFM The Basics For Mass Air Flow. I inserted a picture of what i polled from my ecm in pic 1 and the only graph layout readings in pic 2. Any help would be apprciated
pic 1
Channels.jpg
pic2
graph layout.jpg