My check engine light came with my 04 g35 coupe so I went and had it checked and the codes they came back with were p1167, p1166 and p0159. Can anyone help me what these codes are and how to fix them? Looks like the codes read Heated oxygen sensor 2 bank 2, heated oxygen sensor (bank 2 sensor 2) lean shift monitoring (bank 2) and 02 sensor circuit slow response (bank 2 sensor 2). Can anyone tell me what this means and the remedy for them?

 

http://engine-codes.com/make/infiniti

 

sounds like you have a bad oxygen sensor bank 2 after the cat, bank 2 is driver side

 

Looks like the codes read Heated oxygen sensor 2 bank 2, heated oxygen sensor (bank 2 sensor 2) lean shift monitoring (bank 2) and 02 sensor circuit slow response (bank 2 sensor 2). Can anyone tell me what this means and the remedy for them?

 

any recent mods or repairs?

 

I just had both my camshaft sensors replaced, and only recent mod was done to my struts and springs.

 

Someone said maybe running some fuel cleaner will help getting rid of the codes and check engine light? Is that true or should i just take it to a mechanic?

 

Take it to a shop, ive never seen a fuel system additive completely remedy an issue, plus you have
multiple fault codes for one sensor on one bank.

 

replace Heated Oxygen Sensor Bank 2

 

^^^^yes! how many people have to say it? you can do it yourself with some car ramps or jack stands and a 22mm wrench or oxygen sensor socket.