Code P0420

Tiny
VNC4E
  • MEMBER
  • 2005 NISSAN MAXIMA
  • 6 CYL
  • FWD
  • MANUAL
  • 76,000 MILES
I have the car listed above and check engine light came on. Checked with the scanner and and code p0420 show.
Monday, May 24th, 2010 AT 5:11 PM

1 Reply

Tiny
DANNY L
  • 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.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Sunday, December 6th, 2020 AT 2:29 PM

Please login or register to post a reply.

Related P0420 Content

VIEW MORE

Sponsored links