P0420 is my cat bad?

Tiny
KYMART
  • MEMBER
  • 2006 NISSAN FRONTIER
  • 6 CYL
  • 4WD
  • MANUAL
  • 150,000 MILES
Hello, I need to put two new catalytic converters on my truck? I believe the codes were P0420 and P0430. There were no other codes displayed. What could this code be referring to on a gasoline engine?

Thanks


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Tuesday, June 10th, 2014 AT 8:26 AM

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Tiny
KEN
  • ADMIN
Hello,

Yes this code means your catalytic converter is weak and cannot converter the un-burnt fuel to burn fuel. Here are a couple of guides that will help you get the problem fixed.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

and

https://www.2carpros.com/articles/catalytic-converter-replacement

Please let us know what happens.

Cheers, Ken

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Monday, June 26th, 2017 AT 9:34 PM

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