My wife came home one day complaining about our 2003 325xi stalling everytime she came to a stop light. Your symptoms and codes are very similar to the codes I pulled after test driving the car. My problem was due to the DISA/intake air adjuster had failed. I removed it and could visually see that the internal flap was no-longer connected and therefore was not adjusting intake air flow. Obviously yours could be something else but it sounds exactly like mine. After the install the car runs better than ever. I've only had it for 1 year but it now seems to have more power and accelerate better.
Last edited by F16driver; 01-27-2013 at 09:50 AM.