Intake manifold is off, working on vacuum hoses

[sunny_j]

Originally Posted by TriX5

....where have they been all this time? Decided to take it iff the jack stands and give it a whirl. The improvement in performance is insane! I even have brakes again! So, I guess my vacuum system was seriously messed up. Cleaning up the intake and swirl flaps probably also made a significant difference.

I saw some posts of people with E90s who had a lot of improvement from changing the pressure converters. And this tallies with that experience. I am so pleased that I decided to tackle this at last.

Next stop, transmission and TCase service.

I changed the pressure converters and electronic valves when I did the VCG back in December and I noticed an improvement in throttle response.