The PCV and the leaking OCC are not "the cause" but a manifestation of your "high rpms" and related internal pressures. Take her to the dealer.My car has high rpms on idle and CEL P0507 (Idle Air Control System RPM Higher Than Expected) popped lately and today i saw leakings on the Oil Catch Can and I immediately removed it and installed the hoses from / to PCV valve as stock (without the occ)
My car still has high rpms without the caTCH can, i cant see any leaking now but i dont know if it is my PCV valve open all the time and is causing the problem.
Had anyone similar problem / or an issue with the PCV valve it self?
Well, you can start on your own by replacing the PCV,..its like 13.00 US cheap POSSIBLE fix......I believe there is another crank breather valve but its location is much more difficult. Arent the Euro Hyundais warrantied?? Why use a local shop,?Tomorrow i will take the car to a local shop and have it inspected on diagnostic to find out what causes the Cel . Will update after