Good Afternoon, I'm going to replace my upstream air-fuel sensor's on my 08 GX470. I've had an acceleration issue and took it to a dealer. They ran some tests and saw that it was to running rich and think its due to the sensors being bad. I tried to search the part numbers and all I am finding is the part number for the drivers side (Bank 1 Sensor 1) the Denso part number is 234-9051. Are they the same from the drivers side to the passenger side (Bank 2 Sensor 1)? Any help would be appreciated!

 

Same sensor, LH=RH

Just make sure you are getting No.1 and not the post-cat No.2 sensors.

 

Thanks I appreciate the help!