hahaha.... Ne who... Ya I would say the egr. I don't know what it is with 3800's and the egr, but they have a weird relationship. I was driving next to my friend on the highway not that long ago and I was like fxxk it and I gunned it. Haha. When I got to a stop light it was idling really eratically and I stopped at a parking lot to check it out, but it already smoothed out. I think it was just a piece of carbon that got stuck in the egr. I talked to another kid with a bonneville ssei and his was doing the same thing as yours and my best guess would be the egr. Its pretty common. Nothing stays clean forever.
