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BMW 3-Series (E90 E92) Forum
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Error Code 2C7F Fault (O2 sensor???) with strange toxic smells from vents
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| 02-08-2015, 01:57 PM | #1 |
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Private First Class
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Rep 177
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Drives: E90
Join Date: Aug 2011
Location: Toronto
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Error Code 2C7F Fault (O2 sensor???) with strange toxic smells from vents
I just got a 2C7F fault:
2C7F Lambda probe behind catalytic converter 2, trimm control Error will cause a warning light Error is not currently present Test conditions have been completed Signal or value below threshold I've been smelling sporadic toxic smells coming from my vents too which I can't trace to source. Do my O2 sensors need to be replaced? If so which one?  Any suggestions would be appreciated? |
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