HKS SSQV Problem

[DSMPowerTSi]

I've had this BOV on my car for over 1 1/2 years and out of the blue it started making a different sound. I revved the car in neutral and found out that only the small port on the bov was opening, causing compressor surge. I tried a different SSQV and tested for vacuum leaks (via boost leak tester) and it is still having the same problem. Anyone have a problem like this before? Thanks in advance.

 

['96_Talon_TSi]

I have heard stories of the SSQV causing compressor surge becase its not opening fully. Is there a set screw on the back of yours? This should allow you to adust the valve, and how far it opens.

 

[DSMPowerTSi]

Even with the adjustment screw taken out (no pressure on sping) only the small valve opens.