27th Dec 2007, 18:56

After reading the preceding comments, I feel somewhat fortunate that most of the problems I've experienced with my Odyssey were covered under warranty. I started looking at the Odyssey vans in 1999 but always wary of buying the first year of a new model, waited and purchased a 2000 EX. ALL the vehicles I've owned have been Hondas (5 cars & 4 motorcycles), so you could say I'm a very loyal Honda consumer.

I was a little worried about the power doors when I purchased the van, so kept an eye on recalls and technical service bulletins. I had the doors worked on at the Honda dealership 2 or 3 times during the first year, and major repairs in 2005 (still waiting for $400 payment from extended warranty company that went bankrupt) and 2007 ($360 for new power door roller and contacts on one side).

Like most others, my CEL came on at about 37k miles indicating a bad EGR valve. That was replaced under warranty and again at 73k miles. The dash lights (recall item) were also fixed under warranty, as was the transmission replacement (thank goodness I bought the extended warranty). The doors have been the main recurring problem... until now.

On the way to Christmas dinner two days ago, my CEL came on again (not the pretty lights I like to see this time of year). 24 hours and $48 later, my Honda dealer tells me it will cost $800+ for a new catalytic converter. I'm still unsure how to proceed. My other auto repair shop tells me that an after-market CC may not have the proper flow and I may need the Honda OEM CC. I'd appreciate any advice others may have.

From a very loyal Honda owner, I'd have to say that the 2000 Odyssey EX has been a disappointment compared to the other Hondas I've owned. It drives nice, but seems to have an inordinate amount of annoying problems for a Honda. My Accord with 206,000 miles had less problems than my Odyssey with 116,000 miles.

31st Dec 2007, 09:50

A comment for the person who had his CEL lights off after replacing air filter.. Is the light still OFF and how many miles.. It would be nice if you can post the info once a week etc so most of us will know what to do and not spend $1000 at the dealer..


5th Jan 2008, 07:53

I have the same check engine light on problem since 10k for my 2000 EX. I noticed if I accelerate slowly and keep engine speed below 3000 for two or three week, the CEL will go off. If you disconnect the battrry, the light will go off also. I will replace air filter and try premium gas separately as suggested by others. At 100k, I replaced with cheap plugs and get 19 to 20 mpg. Then a friendly AAMOCO guy suggested that I should spend $60 to get OEM platinum plug and I did, I got around 22 mpg now.


10th Jan 2008, 20:34

The CE warning light came on my 2000 Odyssey at @101,000 miles. Honda said it was the catalytic converter (CC) and wanted $800 for a replacement. I never heard of doing exhaust work at a dealership so I took it to Midas and for $350 had them install a new CC. CE light stayed off for about 300 miles then it was back on. Back to Honda for a diagnosis and they said it was the CC. Back to Midas, different CC plus new O2 sensors for another $350. Two days later the CE light was back on. Ignored it for about two weeks, but the vehicle just got rejected in Houston, TX for state inspection. Inspector said they can't hook up their test equipment when the CE light is on. Back to Midas. Midas confirmed with HQ that yes, they have had problems with the Honda's. They have a new CC to try as it is on order and will be installed NC. Meanwhile, Honda is parked due to the expired inspection sticker. Checked the air filter and it was clean and even blew it out. Waste of time.

11th Jan 2008, 08:40

I had my 2000 Odyssey with 130000 miles come up with the check engine sign. Dealer told me that it was a CC problem and wanted $900 for it.. Since my inspection was getting closer, I had no choice except to do it as I had read in this forum about after market CC's and how they did not work. I called Honda of America and after few calls, got them to pay for it.. I am not sure if this will apply to everyone, but at least it is worth a try.

19th Jan 2008, 19:50

Hello again. I'm the guy with the alleged "air filter cure", back with my tail between my legs. The light stayed off for three solid weeks after replacing the air filter and spark plugs (tune-up). CEL lit up two days ago, and I just confirmed it's the dreaded P0420. Back to the drawing board...

I'm about to add some Prestone 0 to 60 Octane Booster (cleans carburetors and fuel injectors) to the gas tank. If the light remains on throughout this tank full of gas, I'll start trying premium grade for my next few fill-ups. I'm not holding my breath, but if the light goes away I'll report back. Otherwise, assume it didn't.


21st Jan 2008, 17:02

This is a follow-up to my comments on December 27th regarding my CEL and apparent CC problems. I had the Honda dealership reset my CEL and then proceeded to replace my air filter and used gas additives. This was over 3 weeks ago and my CEL has NOT come back on yet. Furthermore, it PASSED the Oregon DEQ tests two weeks ago with no problems. The more reviews I read about this problem, the more I doubt it's a CC problem (maybe more likely a gas quality problem).

3rd Feb 2008, 16:34

The 3rd CC from Midas seems to be working fine. Midas told me the previous two CC weren't built quite right in that the sensors were to close to some other component. I did replace the last of the two original sensors and have only burned regular gas. If I had it to do over again I would have sucked it up at the Honda place and paid their outrageous $800. Three trips to Midas was a pain and spent the same as I would have at Honda.

12th Feb 2008, 19:49

Just a quick follow-up to my 12/27 and 1/21 comments regarding my 2000 Odyssey with the CEL and apparently bad CC. It has now been over 6 weeks and 2,000+ miles since resetting my CEL, replacing the air filter and using the fuel additive. My CEL has not yet come back on. If you read my 1/21 comments, I noted that my vehicle passed DEQ in early January AFTER the CEL had been reset (doubt that could have happened if it really was a bad CC). Still think it might be an issue with the gas. I haven't purchased any Costco gas since then and am only using Chevron, and plan to give it another dose of fuel additive for good measure.

19th Feb 2008, 15:45

Boy, you guys have me scared to death! I've got a 1999 Honda Odyssey van that has 93K miles on it and you guessed it, I've got the same P420 code that's telling me my catalytic converter needs to be replaced. I was contemplating replacing it myself with an aftermarket one, but based on what I've read I'd might as well just "flush" the money down the drain! I'm going to try the air filter, fuel additive and buying fuel from a reputable fuel dealer. Hope that works! Unfortunately I live in one of the states (Maryland) where my vehicle won't pass emissions if one of the codes are set. I'll keep you posted.