Quote:
Originally Posted by Capocaccia
Haha I think everyone has that code.
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More likely just everyone who's still running around with their original sensors. O2 sensors degrade and wear out, like spark plugs. And, again like spark plugs, performance suffers when they're old. (Toyota Maintenance Schedule says replace every 80k.)
k9k9: If your sensors are old, you'll be glad you're replacing them, regarless of whether you have a CEL code. (They don't usually throw a code unless they're
really bad.) Do you keep good track of your mileage? It will likely improve after replacement.
Curtis