Does anyone know what location bank 1, sensor 1 is in a 2008 Lexus LS 460? Passenger or driver side? Engine Bay Area or in the exhaust area?
Any help would be appreciated.
Thanks!

 

Obviously this is way too late to be of any help to the OP but perhaps it will help others who see the original post. Bank 1 is the driver's side and bank 2 is the passenger side. Sensor 1 on either bank is the upstream or engine bay sensor. Sensor 2 on either side is the downstream sensor.