The PCV provides a one way exit for gasses built up in the crankcase. Over time, contamination might cause reduced air flow and cracks can occur in the housing. If your car is experiencing a loss of boost pressure or a decrease in performance with a rough idle, this valve might to be blame.. Replace your faulty PCV valve to keep your engine running at full potential. OEM Valve is the most reliable, best to stick with them on this.
Latest Revision: 06F 129 101 R
