Well, the only exhaust pressure sensor I have available in the app I use is Exhaust Pressure Sensor Bank 1. It reports results in kPa which are tremendously low. What I think I will try to do is connect my laptop to the car to cross reference the sensor. I think the app reports the exhaust pressure in ba over barometric pressure. The barometric pressure sensor reported ambient pressure at exactly 100kPa or 1 bar.
Does it make sense for the pressure to be 1.45 bar at idle 780 RPM and rise to 1.95 bar at its highest at around 2400 RPM?
Edit: The app really reduces image size. I uploaded original here
https://ibb.co/kG7Mvds