The check engine light is not covered under factory warranty. As, initially mentioned, I found this out the hard way about 1 year ago when the check engine light came on....I brought my car to a honda dealer, they charged my $100 dollars to reset the switch and tell me that I was overdue for an oil change. Most expensive oil change ever.
The factory warranty did not cover any part of that, nor did the extended warranty which i purchased with the car that has since expired.
I guess I am still confused as to whether I really just need to bite the bullet and take the car to a dealer to find out exactly what is causing the check engine light to come on, or if I am understanding all the above responses correctly and the light is a direct result of something associated with the new exhaust system.
Again, when i turn the key and start the car...all the dummy lights come on, then they all go off like normal, then the check engine light immediately comes back on. Is this what translates into one short flash that is mentioned in some of the above responses? Or am i missing somthing and need to be looking for the codes somewhere else?
From what i understand, the light coming on immediately after ignition translates to one short flash, which according to the above mentioned EDU code list means the primary oxygen sensor failure, which i was under the impression that this sensor is the one located on the catalytic converter itself.
If all this is true, it is possible that the sensor was damaged during installation of the new exhaust system, or it is malfunctioning for a different reason related to the new exhaust. This is what i understand to be correct. Let me know what you guys think.