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Old 01-12-2011, 01:30 AM   #7
Scooby Newbie
Member#: 219625
Join Date: Aug 2009
Chapter/Region: SCIC
Location: socal
2004 wrx sti


Well, I had completely removed the PCV and capped the line running from the PCV to the manifold (as per crawford's AOS instructions). I'm running the Grimmspeed AOS, and they recommend leaving the PCV in tact. I just don't know... I wouldn't be experiencing problems for the reason you outlined because manifold pressure couldn't travel out any more... we'll see I guess. Should find time in the next couple days to button things up and take it for a spin.
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