So whenever I take the car into the higher rpms, when i let it idle it feels like it wants to stall. It will drop the rev below 1k and feels like its going to shut off. I dont know what the problem could be. I tried lowering the boost and I also tried changing the map sensor and nothing. The car is also tuned on crome.

Motor is d16y8 turbo

 

oh yeah when i shut off the motor and restart it, it goes back to normal

 

Any CEL codes? Have you tried cleaning the IACV?

 

no cels at all. havent tried cleaning the iacv. ill try cleaning it with some brake cleaner