Lately with my new commute to work - lots of stop and go - the Great Mysterious Limp In problem was happening almost daily for 3 weeks.
When I started having the TC slip problem (noted in another post) I plugged the MAF back in in preparation to take it to the stealership. I drove it for about a week and a half like that and several things happened:
1. What's with all this turbo lag!?

How spoiled we are now!
2. Mileage went down a bit.
3. Blew black smoke on hard acceleration for a couple days. Guess the EGR is cleaner now.
4. Sets a P0105 MAF Performance Fault occasionally at warm idle - don't care it will be gone again soon.
and finally
5. It went the whole time
without a single limp in event.
So is this just coincidence? Do people not running ORM get limp in? What about with the SEGR? (No my Rev 1.0 kit still isn't installed.)