alright her is the deal this weekend i started to work on my car because it started to run worse. I had seven codes. The reason i looked into it was because until the car got all the way warmed up when i would hit boost in any gear it would jerk back and forth until the right rpm then it would steady out and be consistent once i did that in every gear it would be fine. So for the most part i got that worked out but now i am getting almost the same thing in 4th and 5th gear and you can hear the turbo sputter. what might this be bad turbo? I only have two codes on now which is code 51 and 52. My oil kinda smells like fuel is this a bad problem. Can anyone please help me