I was told this code means the heated O2 sensor @ bank 2 is faulty. I only see 2 oxygen sensors on the rear side of the engine by the firewall - 1 before the cat. converter and 1 after. What does the "bank 2" mean and where would these be located? How do I know which O2 sensor to replace?
Dec 7, 2009 at 11:23 AM