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I have the following code on my Nissan Pathfinder 2003.
I have the following code on my Nissan Pathfinder 2003. P0430: Catalyst System Efficiency Below Threshold (Bank 2) -- I am not a good mechanic, but I understand things. I would like to know before I c… read more
Anthony P.
Anthony P.
ASE Certified, Ford Master, Honda Master
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I have dtc on my scan ick cat its good the code po420. 2005
i have dtc on my scan ick cat its good the code po420 … read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
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I have a 2001 Nissan Xterra. XE. 3.6L. I am getting a P1148
Hi. I have a 2001 Nissan Xterra. XE. 3.6L. I am getting a P1148 error code: closed loop bank 1. I think this has to do with the oxygen sensors- is that correct? If so, are there two oxygen sensors or … read more
Mike V.
Mike V.
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Subaru and Nissan factory training.
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The Nissan dealership said I need the Bank 2 Catalytic
Hello. The Nissan dealership said I need the Bank 2 Catalytic Converter replaced. Ive been calling to part stores and telling them its the front catalytic converter near the radiator. The part stores … read more
Pete
Pete
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General auto certifications
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Pathfinder: Roy how are you? I am Stafford and I have a
Hi Roy how are you? I am Stafford and I have a 2002 Nissan Pathfinder with a P0420 Code and I am NOT sure whether its the Cat or O2 Sensor on Bank 1 need replacing. The more I read, the more people te… read more
Dan
Dan
Automotive Technician
Vocational, Technical or Trade Scho
23,904 satisfied customers
Pathfinder: Hi Mike To start with I have a 2005 Nissan Pathfinder
Hi Mike To start with I have a 2005 Nissan Pathfinder Le with 107XXX miles on it. About a month ago it was throwing bank 1 Catalytic Converter poor efficiency code. I can't remember the code # ***** h… read more
Mike V.
Mike V.
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Subaru and Nissan factory training.
9,482 satisfied customers
I have a 2005 Nissan Pathfinder LE, which I absolutely love.
I have a 2005 Nissan Pathfinder LE, which I absolutely love. It given me great service and still runs like new. I still owe 11,000 on it and it has 153,000 miles on it. In Oct of this year, the car wa… read more
Clifton B.
Clifton B.
nissan master auto tech
Associate Degree
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93 Nissan Pathfinder: im driving..gas, my car will accelerate slowly
Hi there. I own a 93 Nissan Pathfinder. Recently while im driving and I press the gas, my car will accelerate slowly. It will not do this when I first start the car and drive, only about 10 minutes af… read more
HondaPlatinum
HondaPlatinum
Vocational, Technical or Trade School
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How to replace a catalytic converters on a 2004 Nissan Titan,
How to replace a catalytic converters on a 2004 Nissan Titan, 5.6L, V8 Crew Cab. I have a engine code P420 lit up in my pick up truck.… read more
Eric
Eric
Retired
N/A
33,599 satisfied customers
2004 Nissan xterra: service engine light..p0420 bank one..catalytic
Hello I have a 2004 Nissan xterra. The service engine light is on and it showes code P0420 bank one. Which is a catalytic code. The mechanic I took it to said the vehicle has four catalytic converters… read more
Mike V.
Mike V.
Nissan Technician
Subaru and Nissan factory training.
9,482 satisfied customers
2005 Pathfinder: Dealership..catalytic converter..the drivers side
Dealership diagnosed our 2005 Pathfinder with a bad catalytic converter. The diagnosis is "Bank 2 left side". I know the left side is the drivers side, but which is bank 2? There are two converters on… read more
Amedee
Amedee
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Vocational, Technical or Trade Scho
19,506 satisfied customers
2005 Nissan Pathfinder: catalytic converter..a random misfire code
I have a 2005 Nissan Pathfinder 4.0 V6... Had catalytic converter replaced .. Bank 1 ... Now is throwing a random misfire code P300...and a P1283 code.. what are these codes and can one cause the othe… read more
Mike V.
Mike V.
Nissan Technician
Subaru and Nissan factory training.
9,482 satisfied customers
2001 Pathfinder: After changing my Max airflow Sensor..chip..emissions
After changing my Max Airflow Sensor I was just told that BOTH my catalytic converters are bad. But I also read that Nissan made an "update" to the computer chip for my 2001 Pathfinder to allow a grea… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
19,995 satisfied customers
2000 NISSAN MAXIMA: SCANNER THAT says catylst INEFFICIENT IN bank
HELLO XXXXX 2000 NISSAN MAXIMA WITH 125,OOO MILES ON IT.I AM GETTING A CODE 430 ON THE SCANNER THAT SAYS CATYLST INEFFICIENT IN BANK 2.CAN YOU TELL ME WHAT IS THE CAUSE OF THIS IS IT THE SENSOR OR THE… read more
Paul M ASE Master
Paul M ASE Master
Automotive College
4,537 satisfied customers
2005 nissan titan: check engine light..chassis..mount..a fault code
2005 nissan titan banks power pack replaced cont unit -usm 284b6-zcooa because my truck didnt start 6 months ago it worked but check engine light woundnt stay off.i I need rhe part number for the chas… read more
Tim West
Tim West
Service Manager
Computer/ Automotive certifications
16 satisfied customers
2005 NIssan: under warranty..check engine light came..900 miles
2005 NIssan 3.5 S purchased new from Dealer in Missouri 4/23/2005. Right Catalytic converter replaced under warranty at $29,089 miles on 6/19/2007. Diagnosed 4/9/2010 when check engine light came on w… read more
Jay
Jay
Shop Forman / Lead Tech
Vocational, Technical or Trade Scho
21,934 satisfied customers
2006 nissan pathfinder: ses light..catalytic converter..the 02 sensors
2006 nissan pathfinder 115,800.00 miles ses light is on code po430 , failed bank 2 catalytic converter can i change the 02 sensors myself and which side is bank 2 also how many sensors are on each ban… read more
Ron Z.
Ron Z.
Vocational, Technical or Trade Scho
19,995 satisfied customers
2001 Nissan Pathfinder LE: driver side..passenger side cam sensor
Hi. My 2001 Nissan Pathfinder LE has failed emissions testing with the codes P1145 (cam sensor bank 2-driver side) and P0420 and P0430 (catalytic converters) coming back. I had the passenger side cam … read more
OnlineHelp
OnlineHelp
Bachelor's Degree
3,390 satisfied customers
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used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

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9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

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Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
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SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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