UFO PVC how is it supposed to work?

[maxiz1]

Guys,
How does this valve which is located on the turbo inlet hose works? I tried to blow air from both of the ports and it went through. I thought it was faulty then bought a new one but the results is still the same. Tested with a few new units from the dealer but no difference.

[Wrath And Tears]

The pancake valve is supposed to let CCV gasses / pressure flow through it into the TIP, while preventing boost from entering the system when the DV opens up. I think. So you shouldn't be able to blow through the short stubby end. But if you say that even a new OEM unit let you do it then I must be wrong.

[bmos]

Unless you're returning the new one, I'd cut the old one open and see it for yourself.

Chances are it's just baffled.