Faulty O2 sensor - which one?

[Jason4x4]

My '06 TJ 4.0L is showing a CEL. Pulling the codes gives me P1033, which a google search told me means faulty O2 sensor. Is there any way to tell which sensor? I understand there are multiple O2 sensors. How hard would this be to replace myself since I'm just out of warranty?

 

[bobcat481]

Normally simple....if you can get it broke loose. I think they sell special "sockets" for them. They are split up the side to allow for the wire/connector. Anybody know more about these? I saw them but was to cheap to buy em'. Either way start shooting them with KROIL or PB Blaster now!

 

[Weylyn]

I replace both O2 sensors. That way you get the bad one and not wait for the 2nd to go bad.

 

[SteelHeadz]

That DTC should read as P0133, 1/1 slow response. 1/1 means bank 1 sensor 1. on an I6 , it would be the one closest to the engine(before the catalyst) ,forward exaust.

 

[54cj3b]

if ones gone the others on its way so do both
to remove I use heat on pipe around o2 s pb the hell out of it and use a vise grip to remove some times even a hammer

 

[SteelHeadz]

if ones gone the others on its way so do both

I agree. or use a 22mm open end wrench.

 

[mud4feet]

if ones gone the others on its way so do both
.......

I agree, too! Did mine with no "special" tools. Where there's a will, there's a way!

 

[Weylyn]

I agree, too! Did mine with no "special" tools. Where there's a will, there's a way!

and when there is not away, there is always dynamite. but general tools should work