Thread: Can I leave this disconnected? How it works?
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Old 12-27-2020, 01:24 PM   #4
Grady
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That is part of your PCV system. Do not leave it disconnected! If you want to redesign you PCV system with a catch can or AOS then do that. As stated above you will be getting unfiltered air into the intake system and also crankcase.
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