2011 Honda Odyssey Cats?

2nd79

Member
May 7, 2009
39
Pittsburgh, PA
I have a friend whose 2011 Honda Odyssey with 68,000 miles is repeatedly throwing P0420 and P0430. She had it diagnosed as needing the catalytic converters replaced. I pulled the codes, and it does seem like the downstream O2 sensors are moving too much. She doesn't have the cash to have a shop do it, and the cats are like $200 each. They are basically attached to the manifolds, one between the engine and radiator, one between the engine and firewall. How hard is this job? Is this something that I, as reasonably competent guy can handle? I have been servicing my own cars my whole life, but I would like to have a little more insight before I try to attack a potentially huge project on somebody else's car.
 

sal70ss

Veteran Member
Jan 31, 2003
2,031
Auburn NY
That should be covered by the manufacturer warranty emissions system for 100,000 miles. I would check on that first.
 

2nd79

Member
May 7, 2009
39
Pittsburgh, PA
Thank you. According to a document I found on Honda's site, the cats should be covered for 8 years/80,000 miles. I will have her check into that.
 

GoldenOne7710

Equal Opportunity Offender
Lifetime Gold Member
Jun 23, 2004
5,707
Athens, GA
Just read a link that opened a pdf explaining warranty coverage on Honda vehicles.

Parts not covered...
...other:
Exhaust system replacement/repair of component(s), including catalytic converter, heat shields, hangers, fuel tank straps, fuel hoses, air-conditioner refrigerant charge, unless required as part of a warranty repair; wiper blades; cleaning and polishing.
Basically unless the cats were damaged due to an engine issue that IS covered under warranty...she'll have to pony up for the replacement.
 

Shizzle

Veteran Member
Aug 1, 2012
2,801
oak lawn, illinois
i thought the federal emissions warranty was 8 yrs or 80k and would cover this? Is it not the case any more? My dad had a cat on a Nissan truck go bad past the regular warranty period and it was replaced
 




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