Please help un-confuse me

[ts888]

Trying to sort out the final bugs from my engine rebuild. I'm seeing codes for low MAP and low Charge Air Pressure readings. Scanner confirms both are reading 0.

So... I can't find a charge air pressure sensor. The MAP sensor is on the intake manifold, next to the oil filler. It apparently succumbed to my overzealous cleaning, I can see the rubber membrane has failed. New MAP sensor ordered.

I have a sensor on the bench that looks like this:



What I don't have is anywhere to put it. I assumed it was from my parts car, which is a MY 2000. The car I've repaired is a MY 2001 (B235E if it matters).

There's a sensor in the intake air pipe next to the BOV, but that's an air temp sensor as far as I can tell. WIS and parts fiche not helping.

Did I leave off a sensor? Seems unlikely, I smoke tested the full intake from the turbo to the intake manifold today. Or is the CAP sensor different for MY 2001 cars?

EDIT: A good point to note is these codes are new. Before the rebuild there were different codes (it had a badly burned valve).

Also, the car will not start unless I shoot some carb cleaner in the intake. Once it has that, it starts and idles, and runs as well as it can in limp mode.

[ts888]

Wait... is THIS really the "Charge Air Absolute Pressure Sensor?" On the fuel tank?

https://www.jimellissaabparts.com/pr...6/4727186.html