I have a check engine light on which diagnosed by Autozone relates to O2 Sensor, Bank 2 Sensor 1.

I realize sensor 1 is upstream before cat converter. However, I've received varying opinions as to which side is Bank 2, driver or passenger.

Can anyone please help clarify location? Thanks

2010 F150 4.6 V8, produced in 5/10

 

I just had this happen to mine and purchased a new sensor from advanced auto.... lucky for me the check engine light went out 50 miles later and has been off for the last 1000 miles. with that said, have a parts store give you the part number for bank 2, sensor 1 and then log into rockauto.com and compare the part number. It tells you which side and which position on that side. I still have to return mine come to think of it.

 

The safest way is to use a scan tool, but I believe bank 2 is usually the driver side...

 

I think by definition bank 1 is the side with number 1 piston, and bank 2 is on other side. That would put bank 2 on driver side with a 4.6L Ford.

4.6L & 5.4L Cylinder Numbers (Map)