So, I just put a cam in my 02 5.3 and I'm trying to log my idle airflow. My histogram isn't logging anything. What am I missing? I've been reading for 2 days now, I'm stumped, I've got everything (g/s) that I can see and I'm logging LTIT and STIT, why is it not showing anthing in my Idle Airflow Desired graph? Thanks