Honda Repair: 2005 Honda accord 02 sensor, honda accord ex, o2 sensor

Question
How do you replace an rear 02 sensor on a 2005 Honda accord ex and where exactly a is it located? Is it easy to get to and are any special tools needed?

Answer
Kim, the rear O2 sensor should be located in the catalytic converter. Bank 2. The catalytic converter is part of the exhaust system. There will be a heat shield held in place by some 10mm bolts. Remove this shield. It requires a large open end wrench to unscrew the O2 from the cat. Follow the wires up through the floorboard and remove the body/rubber plug. You might be able to pull enough slack out of the wires to find the disconnector plug. If not there will be access through the carpet under the passenger rear seat. Thats about it.