P0420 code

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2008whiteversa
Posts: 2
Joined: Sat Jan 03, 2015 6:23 pm
Car: 2008 white versa

P0420 code

Postby 2008whiteversa » Sat Jan 03, 2015 6:34 pm

So as the title says i am experiencing this code first hand. Little back story, its my wifes car. Runs completely normal, no bad idle, starts and runs fine. Gas mileage is about normal. may be a couple miles off a bit. i don't drive it so i can only go by her word.

Car has 121,000 miles.
Changed spark plugs and air filter today as well as oil.
Took it to my mechanic, trustworthy guy I have been using for years. He thinks its the catalytic converter.

Im not asking what the codes mean as i have researched it and i know what it means.

I am asking those who have had this problem what exactly did you do to resolve it and what are my best options for fixing this.

It needs to be inspected and live in texas which does require emissions testing.

Thanks, any information would be helpful.


User avatar
Leo2005
Posts: 1379
Joined: Sat Aug 04, 2007 10:36 am

Re: P0420 code

Postby Leo2005 » Tue Apr 28, 2015 6:27 am

Could be O2 sensor. Catalytic still need to be inspected.


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