[QUOTE
I large rubber gasket was caught in the butterfly valve and would not let it shut. I still don't know where this gasket came from...I'll figure that out later. I reassembled everything and it runs great!

Resolution:

The butterfly valve in the Throttle Housing Assembly was being held open by a large rubber gasket.

This problem is solved.[/QUOTE]


Wow this happened to me this morning! I know the where the Gremlin came from in my case. unfortunately I was I5 when it happened so I had no choice but waste money on a tow. The culprit was myself. I replaced the HID bulbs and when I reinstalled the air cleaner box the gasket near the MAS gut wedged and eventually sucked into the throttle body. wasted $100 from a dumb mistake but Ill take that over a massive BMW bill anyday.

MAS is a big flag for program failsafe with rough idle and almost no gas pedal response.

Thanks wish I saw this thread before I took it to the shop.