Question about 2003 Nissan Murano

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Obd code P0240/ 2003 nisson murano

What is the most likely problem with this code?

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  • Ambro88 Sep 04, 2008

    My light is ON and my 2003 Murano failed Inspection due to P0420 Catalyst System Efficiency Below Threshold Bank 1. Called the Nissan dealer and it's either the O2 sensor or the Cat Converter - CAT is covered under warranty 8yr/80K Federal EPA. O2 will be out of pocket and expensive part only $165.00 + lobor! How do I know it's the CAt Vs. O2 sensor?

  • Anonymous Nov 06, 2008

    There are 3 catalytic converters in the murano. How do you know which one is wrong? I have also error p0420

  • sabrinaneug Nov 10, 2008

    My light is ON and my 2003 Murano failed Inspection due to P0420 Catalyst System Efficiency My inspection results show my O2 sensor and O2 Sensor Heater to be "READY" or the Cat Converter - CAT is covered under warranty 8yr/80K Federal EPA. O2............So, how do I know it's the CAT Vs. O2 sensor?

  • sammyoj2001 Dec 22, 2008

    how do i resolve ho25 heater control bank 2 censor 2 on nissan murano 2003

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Do you mean P0420?? If its a P0420 you need a catalytic convertor.

Posted on Jul 20, 2008

Thank you, yes P0420 was the correct code.

Posted on Jul 20, 2008

  • obelle obimma May 06, 2013

    catalystic system bank 1

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Not necessarily a catalytic issue. I have a 2000 Sentra that set off the same code. I replaced the catalytic, which set me back a ways (California emissions added to the cost!), and within a week, the same code went off. After doing some research, Im going to check into the secondary O2 sensors on the up and downstream of the catalytic (both O2 sensors found in my engine bay have already been replaced so I kind of narrowed it down to the remaining 2). As the catalytic is brand new and there are no exhaust leaks, I am forced to conclude that this is my problem. My suggestion is to have your sensors checked before dropping $600 like I did. If they have the tools, they can test individual sensors without replacing them which could save you $120-$165 per sensor by just guessing. Good luck! 

Posted on Nov 12, 2008

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SOURCE: nissan murano cvt code obd 2 p0868

transmison p0868 solution

Posted on Nov 02, 2012

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MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE P0300-P0306, P1273 OR P1283. *TT *SC
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