Hi,got eml light on and lack of power between 2 and 3500 revs, it's berm plugged on and saying p1144 maf sensor open short to ground, I've replaced with new sensor bosch to be exact not cheap plugged back in still not solved issue after clearing codes etc, checked wiring can't see a break or anything on sensor end please any more clues in to this would help it's sending me insane? thanks

Sorry it's 2004 1.9 tdi engine code is AWZ