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      01-17-2013, 10:08 AM   #18
Focusedintntions
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Drives: 2011 135i M-Sport :D
Join Date: Nov 2010
Location: NoVA

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Generally i was under the belief that o2 sensors also help the motor determine proper a/f mixture. help keep the car from going to lean or to rich...If they weren't needed we could just unplug them and keep going...
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