And yes I did search the forums but couldn't find the answer I need.
I just bought my '03 on Friday. It has ~87K, and as far as I know it's completely stock. I've driven it about 300 miles and my CEL just came on. I had it checked and of course it was the notorious P0420 code.
So I have three questions.
1) Can an all stock car with 87K have a bad O2 sensor already?
1) I bought the car "As Is" from a Ford dealership. What's the chances of me getting them to fix it.
2) Since the sensors seem to be really expensive, how do I know if I need to replace the front or rear sensor?
Thanks for the help.