For a 93 850 GLT when I get quotes on new cat converters they ask if it is with or without an air pump. Now I ran a search, but could not find an answer, I just need to know what this air pump thing is so that I get the right cat. For reference there is no tubes going into the cat, there is nothing before the cat that I can see and there is only one O2 before the cat, nothing after.

thanks

EDIT: Nevermind, found the answer to my question...thanks to volvospeed.com

 

If you would have just searched for AIR PUMP then you could have found out.
https://volvoforums.com/searchpro.as...mitbutton=+OK+