We have a 2000 s80 2.9 that has ALL of the problems listed in this post. We ultimately had the CEM replaced as well. Fixed it all!

Our mechanic told us that our throttle body and vent box are clogged and the repair would be around $700. I don't have the money and would like to do it myself. I have seen a posting or two which make the clean up look pretty simple . . . but I don't even know where to find the throttle body or vent...