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      09-24-2014, 12:36 PM   #3
kerrit
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Drives: Melbourne Red e90 M3
Join Date: Jul 2012
Location: Bellevue, WA

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2008 E90 M3  [0.00]
2014 M5 CP  [0.00]
Update: I suspect I still have a vaccum leak somewhere or the ICV is going out. I'm smelling an oily intake smell through my vents on startup for a few seconds which I would think would point to a vac leak. Also, if the car has been sitting for <3-4 hours I get bouncy idle on startup that dips as low as 200 rpms and up to 800 for about 5 seconds.

I'm going to fix those issues, and then contact ESS if not resolved. I would think extremely rich conditions on startup could cause the o2's to not warm up fast enough, triggering the CEL.

Does anyone concur?
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