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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Low boost, fault codes 30FF and 2C7B, related?



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      10-28-2014, 06:37 PM   #1
IronMask
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Drives: 2009 335i
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Low boost, fault codes 30FF and 2C7B, related?

I have low boost as well as the oxygen sensor fault code, is the oxygen sensor causing the low boost ? It's an after cat sensor so I don't believe so or is it just a coincidence that both codes popped up? Or by product?

I figure the low boost is a vacuum line but I've only went over what's readily available at the surface and not under the engine.

Any help is appreciated! Thanks.
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