E46Fanatics - View Single Post - Apparently DTC P2240=BMW FC 2974
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Old 03-08-2012, 11:40 AM   #33
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Join Date: Jun 2011
Location: 38.8897 N, 77.0089 W
Posts: 12
My Ride: BMW
Having the same issue, after reading this thread I decided to get the DME programmed. The dealer sent it to NJ for the 4K RPM dip and they did the update in-house. Also changed DISA, valve cover gasket, plugs, fuel filter all pluming: intake, vacuum, oil separator, etc.
Got the car back feels good so far, 4K RPM dip gone
As soon as i got to a hill the main problem still occurred between 2500-3000RPM. The update did not work for me
About to change fuel pump, Air Mass and Vanos seals, Not going to give up yet
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