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      08-31-2012, 11:22 AM   #7
Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

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Originally Posted by BADS335 View Post
Actually, after looking at the boost alone (I had way too many overlays) there is no swing. It is a pretty steady taper all the way.
Yep, your boost is fine and smooth. If the knock retard is persistent when running 100oct, then it's unlikely to be an issue with software/tuning but rather a hardware issue. Could be as simple as a problematic plug/coil or as irritating as carbon build up in your valves/on your piston. When was the last time you changed plugs? Ever done walnut shell bashing?
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