Hello all! I am quite new to making repairs myself but have decided to try and fix what I can myself, if the job isn’t too complicated hahaha. I have an O2 sensor that needs fixing. The codes say bank 1 sensor 1. From all the reading I’ve done, there are only 2 O2 sensors on my element, and I know where those are located (around the catalytic converter on the passenger side). I am having a difficult time figuring out what sensor is sensor 1 (I am assuming it’s the one closest to the front of the car, but want to make sure)? And am also having trouble figuring out which sensor to order...? Any help you could give would be greatly appreciated!

 

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Both sensor are on the same bank (bank 1). It is the first sensor, which is the air/fuel ratio sensor. It has a gray color harness connector.

The secondary oxygen sensor is sensor 2, it has a blue harness connector.