Desired vs measured readings

I believe it's a variable twin scroll borgwerner

"Back pressure" would be a negative value though. Unless they compensate a car with the key on and engine off should be a 1 atmosphere unless it's compensated to 0. Any positive exhaust pressure should push exhaust gases out of the exhaust and any negative pressure should suck them back in again. The more throttle the more positive pressure. "Back pressure" should only be posible in a 4 stroke exhaust if it had a leak to the intake through a permanently open open EGR. That would also explain the exhaust pressure being lower with the engine running. Strange if it didnt set a code though. That's unless there is any other path for exhaust gasses to get into the intake.

Crap. I've got to look into this further

RimmersTechSWE wrote: Yeah the anomaly is almost exactly 1 atmosphere of pressure so it looks like there is some calculation error. That upstream throttle sensor might be a dead end.

Actual is definitely absolute pressure because it's ~ BARO KOEO. The desired is less than BARO so it might be gauge pressure??

What exactly to do you mean by "guage pressure"?

Oh, I see what you mean. That wouldn't add up either. The odd thing is that it smooths out when both numbers even out. That makes me think the desired is absolute as well

Seen here at about 3.5k. This is usually when the car feels like it flips a switch and starts to pull normally. It runs like garbage mostly when I see the numbers out of alignment. This is the only quantitative thing I've found that shows when it runs well and when it doesn't.

It looks like the readings for "desired" are mirroring absolute intake manifold pressure. So what the hell is it measuring?!