Ok, so my O2 sensor went out a couple of weeks ago. I received a printout that said the sensor that was out was bank 2 sensor 1.
I first go to PepBoys, since its by my house, and asked them.
The guy looks up at the sky and goes, "Hum, lets see now. Bank 2, sensor 1, that is the driver's side behind the converter."
I then go to Toyota dealer and he didn't ever know where to start. He said his computer only says 1,2,3, and 4.
So I took the PpepBoys word and replaced the back left sensor...WRONG!! $130 later.
WHERE IS BANK 2, SENSOR 1 PLEASE!!!