engine problems while crusing
 

Let me start off by saying my car has a bad turbo. Most likely the primary. So when I drive my rpms tend to stick on the way down when i rev to about 3,4,5k. No its not the 3k hesitation because I feel that too. Theres oil spitting from my blow off valve which is leading me to believe i have a bad turbo. The other problem i have is when i cruise at any constant speed for too long my car starts to jerk as if its about to stall. I've looked around and seen some people had injector and plug failures. from the oil leak 2 plugs were ruined. So I then replaced but still have same two problems. So I'm curious if the two problems are related, and also if the turbo leak could have anything to do with the either of these problems. bought replacement twins off craigslist $150 =].