Check Engine Light on, Catalytic Converter Fault on Honda Odyssey

There have been reports of Catalytic Converter failure that causes the Check Engine light to come on. Replacing the catalytic converter will repair this issue.

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Average mileage: 134,102 (14,800–200,000)
6 model years affected: 1995, 1999, 2000, 2001, more2005, 2006
29 people reported this problem
13 people shared problem details
I had my catalytic converter replaced with an after market one four months ago. Last week I had my muffler replaced, and the man that replaced it said the converter was not done very well and he welded a spot on it for me. Since then, my check engine light has been on. I have been told not to be concerned about the light being on because the computer doesn't recognize after market catalytic converters. Is this true. Should I stop worrying about it.
11 people like thisFlag inappropiate
2005 Honda Odyssey140,000
Check engine light comes on was told by dealership its the Catalytic Converter needing to be replaced. Seems to happen to a lot of hondas
7 people like thisFlag inappropiate
My 05 Odyssey had 4 catalytic converters on it and ALL burned out. Honda charged me about $1,000.00 every single time to replace them. They said they didn't know why they went bad. I finally had a non-Honda mechanic be honest with me and tell me that I had a leak in my fuel system which was apparently not worth fixing. He told me to sell the vehicle. Wish I had known this MUCH earlier from the Honda service technicians. Apparently this is a VERY common problem with the Odysseys. Why hasn't there been a recall???!!!
7 people like thisFlag inappropiate
2001 Honda Odyssey150,000
Had to have Catalytic converter replaced. I shopped around after the dealership quoted me $800 to $1000 to do the job. Had replaced locally for $225. Lost a lot of faith in the dealership after this. Fixed problem. This was around 4 years ago.
3 people like thisFlag inappropiate
2006 Honda Odyssey128,000
Spent $1400 and three days without a car to have them fix what they thought was the issue. As we were driving to CA on vacation, about twenty miles from home, the check engine light came on. They did not tell me it was the cat when it was in the shop, but it looks like it might be (from all the comments I have read). Drove all the way to SanD with the check engine light on. Guess I'll have to find the rest of the money to fix the cat now! Pretty sure it won't pass emissions inspection in Aug otherwise.
1 person likes thisFlag inappropiate
2005 Honda Odyssey94,000
My Honda Odyssey has check engine light on and the dealer says catalytic converter need to be replaced.
1 person likes thisFlag inappropiate
2006 Honda Odyssey107,051
My check engine light came on and I was told it was the Catalytic Converter. We tried a gas additive and using higher grade gas. It stays off for a while after it is reset, then comes back. Now we are thinking of replacing the Converter with an after market Converter. Hoping this will solve the problem.
1 person likes thisFlag inappropiate
2006 Honda Odyssey187,000
Goodyear told me it is bad. Sent me to a dealer or exhaust mechanic.
2006 Honda Odyssey14,800
check engine lite came on. dealer hooked up computer.it said replace catalytic convertor
1999 Honda Odyssey200,000
the engine light is on and want go off don't have a clue what is causing the problem
2005 Honda Odyssey102,900
Check engine light on, Code scanner says cat converter bad
2000 Honda Odyssey121,000
Bad catalytic converter.
1999 Honda Odyssey120,000
I did a lot of things, but stll no luck, included replaced aftermarket catalytic converter.
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