Bank 1 sensor 2 I believe. The one covered with the white sleeve is the one I need. Need it Asap! Paypal ready.

 

http://www.o2simulator.com/ thats your cheapest BEST BEST BET !!!!!! its not worth paying dealship prices but if you really want go to advanced they sell that bank1 senor1 (white) and bank 1 sensor 2(black) there about $100 a piece. i replaced those and the red and blue ones went shortly after and those are deal only parts so i bought the simulator and havent had one prob and the car runs perfect

 

+1 o2 simulator works great.

 

Huh? I don't understand this O2 Simulator...

How does this work?

I gotta 02 se max and I need to replace all my O2 sensors....

 

Thread closed. Got tired of these ****ty prices so I went to radio shack. 5 bucks for resistors and SES is gone lol.
secondary o2 sensors outta my car.

 

This is an o2 (oxygen) sensor simulator. It simulates to your car that there are oxygen sensors. It is cheaper than any sensor you will find. google it.