I am looking for the bank 1 sensor 2 location on my Tucson. Also a "How to" on changing it out myself. Any diagrams, instructions and all help is greatly appreciated

This pic should help:


Bank 1 is always the side of the engine with cylinder #1.
Bank 2 is always the side of the engine with cylinder #2.

Bank 1 is the bank of cylinders on the firewall side.
Bank 2 is the bank of cylinders on the radiator side.

Sensor 1 is the O2 sensor before the cat.
Sensor 2 is the O2 sensor after the cat.

So the one you want is the sensor AFTER the cat on the FIREWALL side of the engine.

You rock! Thank you sir! Would you happen to know how to replace it? This is new to me and I really want to learn how to do this myself on this Tucson.

This is sensor 2 in Bank 1 as seen from under the car:


Basically unplug the connector and unbolt the sensor. Apply anti-seize to the threads of the new sensor without getting any on the sensor itself. Thread in and tighten (29.5 ~36.9 lb-ft). Plug in the connector. I'd advise getting a Hyundai sensor instead of a cheap off-brand one.

What is the code that lead you to think you need replacement ?

Couple of the codes are a program, nothing wrong with sensor, so you be throwing money away replacing sensor..

I had a mechanic from work hook up the code reader and thats what he said it was

Thank you Nova!

Is your mechanic a Hyundai Tech ?

What is the P-xxxx code.. ??

So you is going to buy a sensor, and it may not be the real problem, when the repair might just be a PCM reprogram ??

I am trying to help you move the right direction..

I appreciate it man. he is not a hyundai tech and he didnt tell me the code. Now The hyundai stalled out on me at an intersection today

Old TPS --