Nick85 Posted March 5, 2014 Share Posted March 5, 2014 What have you guys used to block off the pcv valve pipe on the throttle body when fitting a oil catch tank?Whatever was blocking mine has fallen off and is causing the car to rev at about 4000rpm on idle. Quote Link to post Share on other sites
Jamie5414 Posted March 5, 2014 Share Posted March 5, 2014 Take it out completely and weld the JIC fitting in it's place Quote Link to post Share on other sites
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