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      12-05-2013, 11:07 AM   #3
Mike@N54Tuning.com
BimmerPost Supporting Vendor
Canada
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Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

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Its not an issue with the JB4, its an issue with backwards or damaged o2 sensors.

Mike
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