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Old 06-30-2008, 08:19 AM   #6
enviousdreamz
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Join Date: Apr 2004
Location: kansas city, mo ; lakewood, wa
Posts: 168

Default Re: Concerns with my header and lack of an O2 sensor

Quote:
Originally Posted by QJKXBM
you aren't running lean. the secondary and tertitiary o2 sensors you eliminated have only to do with emissions.
crap, sorry, i just noticed that i said lean, i meant rich... but i guess im confused on what exactly the o2 sensor does. so me not having an o2 sensor wont effect my gas mileage or all around performance of the car? i have a 2000 mile trip in a week, then i have to drive back so i would like to have the best mileage possible.
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2004 blue zx3 2.3, focus central cold air intake, cosworth header & flex, cosworth BS delete, mbrp catback w/ extra magnaflow muffler/resonator, Xcal2 tuned by FS, kyb agx, steeda springs, 17" steeda asa wheels, painted interior, short throw shifter, pretty pedals
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