Engine cuts out when I rev over 3k n let it drop back to idle

[Dbeirkeekrsti]

I've been have a reacurring problem where my engine just shuts off. Usually because I revved over 3k and let it return to idle. But some times it shut off at idle. It's a 05 sti ej257. It's got 114k on it. Newish plugs. Any idea or any one else see this problem before.

 

[HolyCrapItsFast]

Boost leak check it

+1

9 time out of 10 it is a boost or vacuum leak :tup:

 

[Dbeirkeekrsti]

whats the best way to check for that and which hoses. pics would help greatly thank you guys i appreciate the feed back