Quote:
Originally Posted by JWillis72
Thank you but dang it, we are searching for something that could cause the tuner to see what looks like a vacuum leak and I thought that could be it.
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Frustrating.
That wouldn't be a vacuum leak. Adding a catch can off the PCV system requires a retune, as I understand it, because you are running leaner since the vapors off the head aren't being recycled anymore.
I'm vented to atmosphere and it didn't cause MAF issues.