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Why is there noise coming from PCV area?

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Old 07-09-2020, 08:49 PM
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Originally Posted by Chuck S
Can you vent the valve cover "to atmosphere" and skip the PCV all together? That's not a suggestion, I'm just questioning if it's possible and what the ramifications might be.

-- Chuck
it's possible. ramifications are increased pollution and won't pass a smog check.
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Old 07-09-2020, 08:49 PM
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i'm wondering if you have a "clog" in your exhaust system, maybe the catalytic converter is clogged up.
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Old 07-15-2020, 02:27 AM
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Originally Posted by jyeung528
what is the story on this valve cover?
https://www.s2ki.com/forums/s2000-un.../#post24736037
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Old 07-15-2020, 02:29 AM
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Originally Posted by jyeung528
i'm wondering if you have a "clog" in your exhaust system, maybe the catalytic converter is clogged up.
Wouldn't that start throwing a CEL? CAT was replaced with new OEM about 5 years ago. New primary O2 sensor was replaced with OEM last year (wasn't necessary but did it anyway).
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Old 07-16-2020, 10:56 AM
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Originally Posted by Thomas Guide
Wouldn't that start throwing a CEL? CAT was replaced with new OEM about 5 years ago. New primary O2 sensor was replaced with OEM last year (wasn't necessary but did it anyway).
i don't know if it would throw a code. maybe someone stuffed some potatoes in your muffler or exhaust?

detach upstream of the cat and see if the problem goes away?
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Old 06-30-2021, 09:18 PM
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I just started getting the same noise last week minus the blowing of the dip stick just the noise. Were there any solutions found?
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