What would cause my car to have that tch tch tch at low boost when I let off the gas. To me it sounds like compressor surge not the bypass valve. I notice I have had a loss in power since i bought it like 4 weeks ago. Could this be a vac leak of some kind if so where would it likly be. Everyone told me the loss of power was due to the car running rich. My question is why it had more power when I first bought it. Only thing i can think of is something is leaking boost.
