I have the car listed above and check engine light came on. checked with the scanner and and code p0420 show.
May 24, 2010 at 5:11 PM
Code P0420
2005 NISSAN MAXIMA
VNC4E
- MEMBER
- 1 POST
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DANNY L
- ✓ASE Certified Mechanic
- 5,648 POSTS
Hello, I'm Danny.
That code is for your bank 1 catalytic converter being deficient or performing below threshold. Here are a few tutorials for you to view about function, testing, and replacement of catalytic converters:
https://www.2carpros.com/articles/bad-catalytic-converter-symptoms
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
https://www.2carpros.com/articles/catalytic-converter-replacement
I've attached picture diagnostic steps below for your car for you to test before just replacing. Hope this helps and thanks for using 2CarPros.
That code is for your bank 1 catalytic converter being deficient or performing below threshold. Here are a few tutorials for you to view about function, testing, and replacement of catalytic converters:
https://www.2carpros.com/articles/bad-catalytic-converter-symptoms
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
https://www.2carpros.com/articles/catalytic-converter-replacement
I've attached picture diagnostic steps below for your car for you to test before just replacing. Hope this helps and thanks for using 2CarPros.
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Dec 6, 2020 at 2:29 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.