2001 S60 2.4t Turbo/Super Charger Boost Sensor location and MAP sensor - the same?
 

I received a PO236 and PO237 error code and am trying to replace the turbo/super charger boost sensor. I am having two issues.
1. I purchased part number 0261230295 at the local auto part store and was told that it is the same as the MAP sensor. Did I purchase the correct part? My next-door mechanic says I did not, but more on that in question #2.
2. Where is the turbo/super charger boost sensor located? My mechanic later admitted that he doesn't work on Turbo engines and does not know. This also does not make me confident on his statement above that I purchased the wrong part. I have looked online and the pictures/descriptions I have found have not been very good. I would love to see a complete engine shot with an arrow pointing to the location of the part with maybe a brief description, if it is hidden in the photo under something else. Descriptions with technical terms are pretty lost on me. This is my first attempt at car repair.

That is the wrong part number for your car, you need a Bosch 9125462 or original part number 0261230029. This is a MAP sensor, and is probably the cause of your 0236 and 0237 error codes. This is the easiest part on your car to change!
https://cimg6.ibsrv.net/gimg/volvofo...f7f2ad8adc.png
The MAP sensor is the Right sensor on top of plastic intake tube pictured here.