Hi, when my maf sensor packed up gave those problems but u say u replaced that so.....strange, could be a software problemI own an 06 gti fsi and i first got it running smooth at about 108k nothing wrong with it besides wheel spindle.100% stock. the car has been serviced properly thru the 2 previous owners. at about 115k i blew #2 coil pack. and I've gotten a boat load of problems since then. Spark plugs, cam follower, fuel pressure sensor, maf, air filter, dv valve, etc. you name it i did probably did it. So now that i have no more check engine lights. Im very unhappy with the way the performance is as its not the same as when i first got it. Again no cel. there just seems to be a lag of power. Theres just no pull and it feels like I'm driving a dam civic. turbo does spool normally. MPG is terrible maxing out 16 city 18 highway. I don't know whether or not i have a boost leak or if i have to get injectors serviced or if i have to get it re tuned. i am broke right now and i can't get a diagnoses done at the moment. Any ideas would be helpful!!