The check engine light recently came on on my 1999 4Runner. I just had the front O2 sensor replaced. Can you give me any indication as to what the problem is now? I have an appointment at a dealer to diagnose the problem but am afraid they are going to tell it is the catalytic converter which I know costs around $1000 dollars. If it is the converter do you see a problem with replacing it with an aftermarket model which I see advertised for about half as much?
Thank you very much,
have the same problem?
Monday, February 11th, 2008 AT 9:08 AM