I have a 2013 nossan maxima v6 and the engine light is on and i had the auto part store check the code and they said its a o2 sensor bank 1 but it didnt tell me which one it just said bank 1 02 sensor running lean i dont know what sensor to buy so i can fix my car and get a inspection sticker. they said theyre is 4 different sensors plz help thanks in advance

 

Just replace both for $100 on Rockauto.

 

which 2 should i replace i asked auto part store said theyre is four sensors the code is p2086 bank 1 is running lean. Which sensore is that thanks in advance