O2 sensor help

[Olbluesilverado]

I have a few O2 sensors throwing a code in my DD. It's a '96 Sierra extended cab, 2WD with a 5.7 Vortec. I scaned it this evening and the sensors throwing codes are Bank 1, sensor 2 and Bank 2, sensor 3. Does anyone here know where these are located at or how I can find out which ones they are?

[does it matter]

bank 1 is the side with cylinder #1 (in your case, the drivers side of the motor).
sensor one would be before the convertor, two is after.

[Olbluesilverado]

(09-05-2010 08:21 PM)does it matter Wrote:  bank 1 is the side with cylinder #1 (in your case, the drivers side of the motor).
sensor one would be before the convertor, two is after.

Thanks Shawn. My dad parted out a '97 'Burban about 2 years ago and he saved all the O2's since the were just replaced. I plan on using those on my truck and saving some money, I just didn't know which ones belonged where.