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2000 Nissan Maxima Question: will changing muffler activate o2 sensor error and turn on serv eng light

 

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mrdocks, Calumet City, IL, April 04, 2013, 11:07
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Getting service engine light activated by o2 sensor after muffler and exhaust pipe was changed

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  • Answer #1

    April 04, 2013, 23:11
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    it shouldn't, unless using modified part it might. bigger exhaust allows different air flow than stock model. sensor programmed for stock model. are the cats. still original. possible they may be clogging a bit. try clean fuel system . ethanol treatment to 1 tank of premium fuel. build up in fuel system, combustion chambers and exhaust can trip your sensors also.
    may want to get diagnostic run to find any issues u should be aware of.

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