Air/Fuel SensorHeater Circuit (Bank 2 Sensor 1)

[greyfellas]

2001 Camry V6: A month ago check engine light came on with code P1135 A/F Sensor Heater Circuit (Bank 1 Sensor 1), which I had replaced by dealer. Recently the check engine light came on again with code P1155. I know P1155 is the Air/Fuel SensorHeater Circuit (Bank 2 Sensor 1). However, there seems to be some confusion with Advanced Auto Parts and which part to order. Can anyone PLEASE tell me the correct part number?
- Denso Part # 2344622…….OR……..Denso Part # 2349021
Or am I off completely and both are incorrect? I am trying to order from RockAuto but do not know the correct part…any help or advise is greatly appreciated.

[bronzemaxell]

for pre 2002camry
if it is Cali emission, get the A/F sensor for upstream
if it is Federal emission, get the Oxygen sensor for upstream
denso oem style from rockauto or amazon seem to be the same item toyota dealership except higher price and has toyota part number stamp on the sensor.

i hooked up P1155, Air/Fuel Sensor Heater Circuit. (Bank 1 Sensor 2)
it is pointing to the downstream oxygen sensor after the CAT converter.

http://www.obd-codes.com/trouble_codes/toyota/

not sure if the link post the accurate information.

i know since 2002 camry v6, there are 4 sensors, 2 A/F for upstream, and 2 Oxygensor for downstream, doesn't matter cali or federal emission.