4 o2 sensors 1990-1994 - Club Lexus Forums

4 o2 sensors 1990-1994

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Old 05-06-04, 08:53 PM   #1
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Join Date: Jul 2003
Location: Pennsylvania
Posts: 370
Default 4 o2 sensors 1990-1994

why are there 4? i want to remove my 2 cats and put in hi flow cats (aka resanators) in for some more much needed juice but will i throw a code? or check engine light due to the sensors
i dunno where it is but i saw pics of a sc400 from club lexus w/ custom test pipes made anyone know his name/link for his pics.
thank you

*i due indeed have dual cat backs but they start prob 5 or so inches behind the cats*
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1990, cat, lexus, location, o2, sensors

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