Where is this O2 sensor?

Hello,

The bank 1 sensor 1 is located at the front of the exhaust system in the exhaust manifold. Here is a guide to help you see what you are in for when doing the job.

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

Here is how you test it

https://www.2carpros.com/articles/how-to-test-an-oxygen-sensor-02-sensor

Here are the locations for your car (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken

Engine problem 6 cyl Front Wheel Drive Automatic 75500 miles
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Is there any tricks to know when changing the oxygen sensor before the catalytic converter?

Hello,

The is no real trick the sensor size is 7/8 you can just use a wrench. Here is a guide to help you see what you are in for when doing the job.

https://www.2carpros.com/articles/how-to-replace-an-oxygen-sensor

(Here is the locations for your car below)

You might need to raise the car up to do the job.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

Please let us know what you find. We are interested to see what it is.

Cheers, Ken