Hi Orange Civic...
If you have a AutoZone in your area you can go there and they will run a free sensor check for you and it may come up with some codes that they can decipher for you.

I doesnt cost anything and some of the stores guys do know whats going on and will be glad to help you out.

Hope this helps you!
WheelBroker

 

I dont think there is one here. You see I live Sault Ste Marie Ontario, Canada where well cars like mine are not so popular and there is not very much help out there. Pritty much all there help I have is my own research. But I am going to check with some other local shops and maybe the honda dealer.

 

I have the same problem and was wondering the same thing, also I wanted to know if it would still pass emissions. As far as I thought, it was pretty common for it to happen since the headers are free flowing and thinner metal compared to the stock manifold therefore creating higher temps and that will set off the O2 sensor. I've had a engine diagnostic done and it came back the O2 sensor. So I know what the problem is I just don't know how to fix it ie. different style O2 sensor, or reprogram ecu, etc...Well I'm sure there are quite a few people with headers, so if you have headers on and you didn't have a problem then what kind of headers are you runnin'? Any info would be great.