Hi all, as above i had my pcv removed in place for creation motorsports pcv delete today as the pcv valve i bought a while ago never came with a gasket and has leaked pretty much since i bought it. Pretty much as soon as it was fitted the car started idling funny, revving by itself etc. The guy told me it was probably because there was more pressure in the system now and the leak which i thought i already had was more evident now. a leak i've been chasing for ages with new n75 valves dv valves etc. He said it sounded like it was coming from the breather hose and from what he could see there was a bit of oil and wear on the hose from rubbing against something. I just wanted to know if this sounds about right and if so can i not get an aftermarket breather hose as he said it was a dealer only part and i'm struggling to find them online. Also a part number if possible please 
Thanks!
Thanks!