Can code p0420 come on and off on a Nissan Altima 2012

Asked by GuruYH1NL Mar 12, 2018 at 09:15 PM about the 2012 Nissan Altima 3.5 S

Question type: Maintenance & Repair

Can code p0420 come on and off on a Nissan Altima 2012 and showing
service engine soon

1 Answer
34,720

charles answered 6 years ago

light may go on and off but code will still be stored until cleared,sounds like you have a catalytic converter on it's way out.

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