Rough idle even after new PCV

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Rough idle even after new PCV

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07-21-2015, 04:14 AM

leeko617

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Join Date: Aug 2014

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'98 BMW 318 Ti Sport

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Rough idle even after new PCV

Hey guys

So after recently doing a valve cover gasket change on my 1998 318ti (M44 engine), my car threw a check engine light code for P1174. After doing some research on the forums, I read that a bad PCV or CCVV could lead to this. I took off my oil cap and felt positive pressure coming out so that led me to confirm the PCV must have went bad. I just changed it out 30 minutes ago but once starting the car, the car idles rougher and still has positive pressure coming out of the valve cover. My revs do not bounce around but i can feel the engine rocking slightly back and forth. Any ideas? I'm just really stumped and frustrated at the back to back problems and would like some help from the forum.

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