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      11-05-2012, 10:57 AM   #14
Tiago@VRSF
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Drives: E92 335i, F30 328i, F82 M4
Join Date: Dec 2007
Location: Hudson, MA

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There's a good chance the o2's aren't damaged unless the harness was damaged upon install. It sounds like the sensors are reversed.

Make sure the gray sensors on the front and back are installed on the short/passenger side pipe