Hi, my 2005 kia rio with about 110k miles on it was diagnosed with a p0420 error code. I've read a lot on the forums about faulty 02 sensors on our rios, what are the chances that this could be the root of the problem?
Amen kevster, I was trying to be positive, Hopefully it's not a cat problem save up some money like kevster say's if it is. They aren't cheap. Reguards Ronjohn