I have a problem with my car and don't know what's wrong. So I have a gfb bov (yea yea hate me for buying an aftermarket bov) and on sunday it seemed like it was back to stock. It's very soft now and makes more of a hks sound than it's normal psssshhhh. Well friday night it was fine, loud as usual. Saturday morning my mom moves the car out to the road and it wasn't touched till sunday morning. Sunday morning I start it and it idles at 1500 (still does at cold start up). I figure maybe it just needs to warm up, plus I had the ac blastin. So I drive off and hit boost go to shift and I don't hear the bov. So on the freeway I punch it to about 4500 from 3rd to 4th. Still BARELY any sound. Also kinda felt like there wasn't much torque and some hesitation when I pressed the gas. I had it on 100% atmospheric until yesterday. Yesterday I put the stock on and rev'd a little, seemed alright. So I changed it out again but now it's on 100% recirc. Drove around and it was much louder than sunday. But now today it's back to how it was. IDK what the problem might be any help is appreciated.

 

rubbish bov change it out for a better one

 

could it be a loose vacuum line some where?

 

just remember your a/c drains power and the car is more hesitant to go into boost with it on. make sure you turn it off if you are testing so that you can eliminate it as a variable. oh and go back to stock :P

 

put the stock one on and test that for a few days. if the problem goes away it could be that the GFB may not be set correctly or could be broken. also check for boost leaks or a hose that may have popped off