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      07-06-2009, 09:32 AM   #4
GGreek5
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Drives: M3
Join Date: Apr 2008
Location: Mass

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I had a code, not the exact one, its listed in the maint section of the forum, replaced all 4 02 sensors, and the Ses light is still on. Car isnt driving any different though. There isnt really a way to check which one is faulty. How long have you been running the downpipes for?