You probably have a huge boost leak.

 

That pisses me off! HAha I had a gredy type s before and it leaked like hell.

 

I replaced all my vaccum lines when i put the motor back into the car.

 

how can i check for boost leaks??

 

You, sir, need to utilize the search button instead of trying to be spoon fed information that is easy to find on this site.

 

+1



the BOV is NOT your problem unless it has something wrong with it causing it to leak.

 

First do a Search, do a boost leak like everyone says and 2nd get a metal 9 diverter valve. Or like me get a Works modified 9 valve if you want to up the boost.

 

Just quit posting and replace that valve. Half of the valves on the market are china knock offs and whether its vented or not, its poorly made. Your symptons indicate that the valve is leaking above .5 bar of pressure causing your power loss. Go buy a stock diverter valve or any valve that can hold boost. It sounds like your hks unit is a fake or busted.

 

alright cool thanks i bought stock one so will see how that will work out

 

get the forge adjustable diverter valve