I have a 2000 Honda Accord V6 sedan (under 100k miles). For two years now I have had a check engine light. Originally I was told it was a CO sensor that was broke. But now when I get the car inspected, the inspector says I have a catalytic error. So off to the mechanic. They replace the catalytic…

2000 Honda Accord check engine light mystery

George_San_Jose1 November 6, 2012, 6:42am 3

It might be a bad O2 sensor. The exact code would provide a clue.

Also Google “How to pass a smog test”, there are some good informative links there on this topic.