Oxygen Sensors Need Help
 

:confused: I have a 2001 Volvo S80 2.9. Do anyone know where Bank 1 Sensor 2 and Bank 1 Sensor 1 is located. Is Bank 1 Sensor 2- 4 wires and Bank 1 Sensor 1- 5 wires?

Bank 1 is cylinders 1,2,3.
Bank 2 is cylinders 4,5,6.

B1S2 is the sensor after the cat on bank one. B1S1 is the first o2 sensor on bank one before the cat.

Is that on the passenger side or the drivers side?

Bank 1 cylinders 1,2,3 passenger side.

Thank you all.

Thanks for the info here. I need same info. Anyone have pics to add?
 

Anyone have any photos to add to all the internet researchers like me out here who view these threads and benefit?
Thanks. Seems straight forward enough but photos sure help a lot!
Special tool list and sizes are a good help too.
Thanks~~~
-Zac

LHD car, right? :)