Whats up! Ive been an evo owner for about 16 months and im having a problem. I've modded the car with Ams cat-back, Boost guage, Boost controller, Safc 2, hks ssqv bov. Now im having a problem my car is making this really loud whislte when i drive it, its like a siren almost, also im only boosting about 2 pounds at most, and my car idels rough and sputters. Ive had one mechanic look at it and he said the possibilities are the turbo bearings are out or there is a vacuum leak somewhere which is causes the wastegate to stay open. i was wondering if anyone had any ideas about what could be wrong.

 

SAFC2, HKS SSQV, that is ur problem, search and go home noob, this topic has been covered SEVERAL TIMES

 

WTF IS WRONG WITH YOU ^^ Jesus Christ Evom absolutly sucks lately....no need to be an A**hole....what is the kid supposed to search if all he knows is it might have a possible boost leak....Link him to the thread for christs sake...

If I knew what to search for I would guide you...but I dont know how you would search this topic possibly HKS SSQ+SAFC+boost...not sure?!?

 

I love it.

Your sig is real funny to.

 

https://www.evolutionm.net/forums/sh...ht=safcII+SSQV

https://www.evolutionm.net/forums/sh...ht=safcII+SSQV

Try those...I dont understand still why you would only build 2psi...

 

There's definitely a major boost leak then. You need to go do a pressure test on your system:

http://vfaq.com/mods/ICtester.html

Make that, then use it to find where your huge boost leak is. I'm sure the HKS SSQV isn't helping anything (why in the world do you have that?), and I'm sure your tune isn't very good with the SAFC (why do you have this, too?), but I don't think either of them are causing this problem, especially if it just recently started happening.

I need to know one thing for sure:

Did you CHANGE ANYTHING recently, after which the problem occurred? Or, did it just randomly out of the blue begin to happen?

Last question...do you have the stock intake still using the stock intake snorkel, and is it fastened down with both clips?

 

try to describe the problem a bit better, like when did it start...did you do change anything recently...try and be a bit more specific, but it sounds like an i/c hose may have popped off...

 

well it just stated last night, its was small then its just started happening bad, when i drive its just starts whistling loud like a siren and i cant build up any more than 2 pounds of boost . the whislte happens at all rpms i just dont go over 4000. so i dont whats going on

 

SSSSEEEEAAARRRCCCHHH retard, JK LOL. I cant find half of the crap im looking 4 with a search either.

 

if you cant build any boost, did you check your IC hoses? maybe one popped off.

 

not sure what it could be, but i know that BOV could be one problem those dont work good with out a engine management system on. suposedly on a stock evo with a few bolt ons it gives people alota problems

 

It sounds like your turbo is shot.

 

IT could be the turbo seizing, but the most simple answer is an IC pipe came off. You'd know, though, because you would have trouble going over 25mph. I'd definitely do a boost leak test first before wasting another minute speculating or responding to this thread...

 

+1. Is yours car blowing alot of black smoke out the tail pipe?