I had a APS BOV installed(used) on my 02 WRX and something just doesn't seem right. It doesn't make any sound like its venting at all. I was looking at my boost gauge and I am still making full boost so I know I don't have a leak. In neutral and reving the motor you can see the piston moving like it should, but during normal driving it doesn't vent at all. Almost like its completely recirc'd again. Any ideas, I'm going to try to adjust the spring and see if it has any affect.

 

i have one also no problems though, the woosh sound is very quite. they say if you get the cold air intake it get a little louder