Question about 2005 Nissan Quest 3.5

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I'm getting a P0420 on my Nissan. What do I have to do to fix it?

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It depends on what the main problem is.
Code 420 is for a problem with the catalytic converter. The converter is not working correctly, but the actual reason would need to be investigated. It could be the cat itself, or something else like the exhaust system or fuel system.

Posted on Apr 30, 2013


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SOURCE: 2002 Nissan Altima P0720, P1574, P0420

I have a 2002 Nissan Altima. Can anyone tell me what these codes are? And how to fix them? P0420

Posted on Jan 12, 2011

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Nissan Versa 2009 P0420 code need to get fixed. Do I change the catalytic converter right off the bat or is there cheaper routes to start with? Thanks

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Nissan Altima Check Engine Light - P0420 Code

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What is wrong when this code shows up p0420 shows up..This is a 2006 nissan sentra

P0420 NISSAN - Catalytic Converter Efficiency Below Threshold Bank 1

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I recently pressure washed the engine of my 2000 Nissan Frontier and now get DTC code P0420. What is the most likley cause of this reading?

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Mi Nissan Maxima 2000, have de cheking ingene on, Troubleshooting P0420 and P1320


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What are codes P0720, p1574, p0420? 2002 Nissan Altima

p0720-- auto. trans. vehicle speed sensor (revolution sensor)

p1574--automatic speed control device/vehicle speed sensor

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Apr 02, 2010 | 2002 Nissan Altima

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2002 Nissan Altima P0720, P1574, P0420

I have a 2002 Nissan Altima. Can anyone tell me what these codes are? And how to fix them? P0420

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2003 nissan murano with check engine light codes P0420 and P0456

P0420 is Catalyst System Efficiency Below Threshold - Bank 1
P0456 is EVAP Control System Very Small Leak (Negative Pressure Check)

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