Quote Originally Posted by Brav View Post
Sad, I was just commenting how reliable my car has generally been aside from problems that I instigated w mods. I was driving in town after I had got on it hard on the freeway and all of a sudden the throttle was behaving erradically. When I would let off it would maintain speed. Then as I come to a stop it sounded like it would die. If I gave it gas it would respond well and seem to smooth out. But rpms were holding after I let off. Also brakes went hard and nearly non functional as I came to a stop. I won't have access to a vag com till later. CEL was already on. For post catalyst. Generic scanner found no other faults. Video uploading now.

Seem like vacuum leak or electronic? Seems to still boost.
I think you are on the right track with the vacuum leak - that was a telltail sign with John's but his was at freeway speed and pucker factor...