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      09-24-2009, 01:16 PM   #8
zsapphire7
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Drives: 08 e92 M3
Join Date: Oct 2007
Location: SF Bay Area

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I dont believe just because u remove your catts it is inevitable to have these issues... I just want to know if my o2 sensors are working properly or if they could possibly be loose or if i need to replace them...
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