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      09-28-2012, 11:35 AM   #2
marv85
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Drives: '08 E90 335i MT
Join Date: Jun 2010
Location: Bay Area

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3100 is boost shutoff, 30FF is underboost I believe. I was getting 30FF for a while and went crazy trying to find the issue. turns out it is my boost solenoids.

Usually 3100 is accompanied by other codes
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'08 E90 335i, MT, VRSF 7" HD, VRSF CP, Fuel it stage 2 LPFP, CSF radiator, more on the way!
'16 MK7 GTI DSG, bone stock
SOLD '10 E92 335i M, 6MT COBB v3, ER IC, ER CP, VRSF DP, Fuel-it st2, Mfactory LSD
SOLD --'07 E90 335i, PTF COBB E50, HFS4, ER CP, ETS 7", AA DP, DCI, ACT, Nitto Nt555