Scan code

Posted by: Anonymous

Scan code - 20/05/08 10:18 PM

Hey guys. I was wondering if you could help me out with a scan code. I had a "service engine soon" light come on. So, I scanned it and the code came up as: PO420 catalyst system efficiency below threshold (bank1). I think it has to do with the catalytic converter, but I'm not exactly sure.
Posted by: Anonymous

Re: Scan code - 21/05/08 06:21 AM

To replace what you're talking about is pretty pricey... i'd try changing the 02 sensors and see if it fixes it.