Used to be on a poster in my dorm: 2005 M3

[Beej]

did you just pull coils to find the dead cylinder or is there a diag. tool that does it for you? glad to hear it worked out. plug 'n play repairs are the best.

Little of both. The generic OBD thing at Autozone just reported a misfire on #2. Then I just unplugged a few while running, checked out the plugs, and swapped coils around to rule out anything else.