Ever since I put my turbo on I've had weird vacuum leaks. All of my lines are 7/32. I fixed part of the leak (line going to the wastegate), but here's ther weird part: When I'm driving.. every once in a while... my idle will just go to 2000rpms or so. If I turn the car off and back on then idle is immediatley back to normal. It only does this every once in a while. I changed out the throttle body gasket, and that didn't really do much at all. Anyone got any ideas?

 

My car kinda did something like that when my PCV valve went to hell. Replaced that and everything is fine. (SAFC hack management)