I installed me Greddy RS BOV with the upgraded pressure pipe at the end of September and everything was working fine. About a month after it was installed it just stop working. The car is running fine but no air is coming out of the BOV. Is the BOV broke or do I have a problem some where else? Any help would be great.

 

check all your vac lines.... make sure the one going into the bov is still there and all i working order. oil your bov with some gear oil and make sure the nut on top is still there.