This is nothing new to me but thought I'd ask why this happens the way it does. When dialing in a MAF table on any E38/67 with the VVE disabled by setting dynamic airflow to less than an rpm point I will be tuning in, the VE airflow works as it should up until 4K rpm. If the VE is off it'll read quite different airflow values as compared to the raw MAF airflow or the dynamic airflow. However even though it may be completely off when 4K rpm comes around it instantly tracks the current MAF and dynamic airflows above 4k rpm. The way I understand that PID is that its supposed to track the VE independant of what mode the ECM is currently running in. Is there still a 4k rpm setpoint in the calibration that would cause this?