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      10-16-2017, 02:14 PM   #7
HawkeyeGeoff
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Drives: E90 335XI MSport, S2000
Join Date: Dec 2016
Location: Waterford, MI

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Those compression numbers are kind of all over the place. What's the spec on % difference per cylinder? On previous platforms I know you usually want all cylinders to be within 5-10% of each other.

No leaks anywhere?

I had a vacuum leak, caused bouncing idles. Fixed it via new valve cover gasket+pcv valve, new sparks, coils, reset all my adapts and boom all set. No outside of norm fuel trims? Any logs?
Appreciate 0