Genuine Honda EP3 / DC5 PCV Valve 2001-2006 (17130PRAE01)

PCV(Positive Crankcase Ventilation) Valves control the build up of pressure within the engine crankcase and vent excess pressure typically to the intake manifold.

Blocked PCV Valves typically cause excessive smoke from the exhaust and uneven idling. In addition excess crankcase pressure can cause early failure of piston rings and oil seals.