got an x3 at work coming up airflow fault code tested it on scope etc think its slightly out.

got a new one no different same sort of readings/graph as the old one, it seems it controls the throttle valves on the inlet.if you unplug them so they are always open its fine revs and drives sweet, or if you unplug the air flow they open up faster than they do with it plugged in which makes it drive fine.

doesnt sound like theres an air leak cant see any only low milage 57k

any ideas

thanks