hey guys i have stock greddy running on stock boost. now for my question my car idles really low and stalls will driving when i put in the clutch!!!at idle the vaccum is steady at -.5 kpa but will go to the -.4,-.3 range when my rpms drop i also hear a small hissing buzzing noise come from the left side of the engine bay more towards the front. Also it sometimes shows a cel light for random cyclinder misfire!!!any suggestions or is this how it runs out of the box im getting a utec and a tune soon but just wanted to no thanks

 

check for leaks. You're using the emanage blue and un-tuned? The Greddy kit is a ticking timebomb out of the box. I suggest you not boost until you get your Utec and tune!!!