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Related Nissan Questions
2005 Altima 3.5 bank 1 cat efficiancey not at 90% put spacer
2005 Altima 3.5 bank 1 cat efficiancey not at 90% put spacer in o2 sensor helped for awhile know comes on and goes off emissions coming up … read more
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I have the following code on my Nissan Pathfinder 2003.
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I have the following code from my OBD11 scanner for my 2007
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JOHN aka Eauto
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Pathfinder: .. I have a 2001 Pathfinder LE 120K miles
Hello.. I have a 2001 Pathfinder LE 120K miles with OBD codes reading PO420(Bank 1) and PO430 (Bank 2) Catalyst System Efficiency Below Threshold..No power loss or idle stumble. What's your call here?… read more
Rick
Rick
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Nissan/Datsun Murano S: Hello. I have 2006 Nissan murano s
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Clifton B.
Clifton B.
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Nissan/Datsun Altima: I have a 2000 Nissan Altima: 2.5L 156,000
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Chris(aka-Moose)
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2003 ALTIMA: GETTING CODE..CATALYST..THE CONVERTOR OR COULD
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im getting trouble codes ofp0420 Catalyst System Efficiency
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2005 altima: getting code..catalyst..below threshold..i be cking
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Mike V.
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We tried new plugs two new o2 sensors left bank..timing..plug wires
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2005 nissan titan: check engine light..chassis..mount..a fault code
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2003 Altima 4 cyl automatic; alarm code PO420 three way catalyst
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2001 Nissan Sentra GXE: it threw the following codes..Po..Catalyst
I have a 2001 Nissan Sentra GXE 1.8. It is not running correctly and on a code machine it threw the following codes: Po 420 Bank 1 Catalyst eff. below threshold Po 430 Bank 2 catalyst eff. below thres… read more
Ironmike
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that the computer on my 2001 maxiam SE needs to be reflashed
I was told that the computer on my 2001 Maxiam SE needs to be reflashed to clear a catalyytic convrter failure. Have you heard about this?… read more
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2004 nissan sentra: p0420..fault code clear code comes..comes back
2004 nissan sentra setting p0420 cat effic below threshold [ bank 1] fault code clear code comes back after drive cycle… read more
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2001 sentra: car runs great, idles smooth, no misfire..o2 sensors
I have a 2001 Sentra XE. I pulled two codes from the OBD II scanner: P0420 and P0430, catalyst efficiency below threshold, banks 1 & 2. The car runs great, idles smooth, no misfire...even under a load… read more
Clifton B.
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I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro!

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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.

David L.Richmond, TX

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

PhilMarysville, CA

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.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

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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Meet the Experts:

Chris(aka-Moose)

Chris(aka-Moose)

Nissan Technician

1,000 satisfied customers

24 years of experience diagnosing & repairing

Tim Mohr

Tim Mohr

ASE MASTER TECH

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30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Marty

Marty

ASE Certified Technician

203 satisfied customers

ASE & Bosch master tech. 30 years experience.

Mike V.

Mike V.

Nissan Technician

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Nissan factory trained and Certified Subaru Technician.

Ron

Ron

ASE Certified Technician

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34 years of automotive Repair

Anthony

Anthony

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332 satisfied customers

ASE Master Automobile Technician with over 18 years exp. in this field.

Richard

Richard

ASE Certified Technician

92 satisfied customers

Nissan Tech ASE certified technician

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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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