Here's a thread that involves the same code. In his case it was the Vanos seals:
http://www.bimmerfest.com/forums/sho...d.php?t=427473
I use Torque to read OBDII codes. You can do it while driving (if you have the OBD to Bluetooth plugged in). I also have an inexpensive reader.
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128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09