I just got my car out of the shop after replacing my catalytic converter and you know how that goes and how much it was....well drove great for about a thousand miles and now all of a sudden i got a split second rough idle and my check engine light came on!! Codes p1522 and code p1195..i Know one has to do with the egr and the other has to do with the idle speed control...Does anyone have any idea why they would both come on at the same time? thanks for yalls help

 

I am guessing at a clogged intake manifold.