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Old 05-07-2008, 01:39 AM   #2 (permalink)
roflwaffle
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Camryaro - '92 Toyota Camry LE V6
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Probably not. IME, heated oxygen sensors are just to make sure the cat's up to temperature and if it's not richen the mixture until it is.. It shouldn't impact your A/F ratio enough to do much to mileage.
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