Need More Info P0136

[04 Green EXT]

Had a good looken girl (Sweet) form AutoZone scan my TB and got this:

P0136 Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)

OK...after searching this code, I know the this is a O2 sensor problem, but can anyone tell me for sure which sensor is 2. I am assumeing that it is post convertor but I just want to make sure.

[BTMinn]

O2 Sensor 1 is before the catalytic converter and 2 is after.

See this post http://forums.trailvoy.com/showthread.php?t=58900 Location of the sensors is discussed in post #4

[Knightslugger]

Sensor two is post Catalytic Converter.

Replace with a AC Delco brand unit.

[04 Green EXT]

thanks, that is what I thought but I just wanted to make sure.