Murano bank 2 cat clogged again

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Rlylteco
Posts: 2
Joined: Thu Aug 20, 2020 1:43 pm
Car: 2009 Nissan Murano SL FWD

Murano bank 2 cat clogged again

Postby Rlylteco » Fri Aug 21, 2020 3:39 am

Replaced the catalytic converter on the firewall side under the manifold just over a year ago, got a code again for p0174 for fuel system lean bank 2, run the scan tool it says replace maf sensor, air filter.. done this code comes back with replace cat, I’m suspecting either an 02 sensor or vacuum leak anyone else had this problem before? On the scan tool I have live data For the 02 sensors only shows bank 3 sensor 2/ then bank 1 sensor 2,


mdmellott
Posts: 711
Joined: Mon Sep 02, 2019 3:32 pm
Car: 2002 Pathfinder SE, 3.5L, AT, P/4WD
2013 Kia Soul+, 2.0L, AT
Location: SF Bay Area, CA

Re: Murano bank 2 cat clogged again

Postby mdmellott » Sun Sep 20, 2020 10:20 am

Bank 3? What are the long term fuel trim readings showing in the live data on your scan tool?


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