Sooo I was driving my Jeep, minding my own business, when my CEL light comes on.
I currently have 79,7xx miles.
I drive straight to Advance Auto.

I read the code, it tells me


P0138 - O2 Sensor Circuit High Volts (Bank 1 Sensor 2)

Doing a little search on here and the FSM, then cross referenced with the Parts Fiche, it looks like the Left Downstream sensor. (Am I correct to assume this?)

Do I just go ahead and buy a new one and swap it out?

56029049AA - Is this the correct part number?

Oh yeah, and what about the tool? Is it necessary on the Liberty?

Thanks in advance.

_________________
-dbk
SOLD2007 6 Speed - Projector Retrofit -Custom LED Tail Lights - Lights on Cowl & 130w 8" ProComps - Full Skids-RockLizard Super Skink Sliders-Front Hitch
Frankenlifted-Al's A-Arms-Goodyear Duractracs 31x10.5R15x7 Cragar D Window 4"bs-Cobra 75WXST - 4' Firestick
4.10s sitting in a box - 3
Sold-1988 Suzuki Samurai
2002 Jeep TJ

Thats where it is left side rear one
I just used a wrench on mine back there when I caught the wiring on a tree branch and ripped it out!

_________________
MUDD'S MOTORSPORT'S We do IFS lift installs ,
03 OVERLAND EDITION /Kilby-Skidrow-Mopar-4XGuard skids/ 2.5 inch TOTAL CONTROL JBA coilovers -JBA Arms/MOABS-31 FALKEN WILDPEAK AT3W / 4.10's etc, 04 Kilimanjaro Edition loaded, plus 05 KJ limited

Crikey!

Awesome, I'll crawl under the truck tomorrow to check it out.
I'll stop by the dealer tomorrow and pick one up.

Thanks, as per usual!

_________________
-dbk
SOLD2007 6 Speed - Projector Retrofit -Custom LED Tail Lights - Lights on Cowl & 130w 8" ProComps - Full Skids-RockLizard Super Skink Sliders-Front Hitch
Frankenlifted-Al's A-Arms-Goodyear Duractracs 31x10.5R15x7 Cragar D Window 4"bs-Cobra 75WXST - 4' Firestick
4.10s sitting in a box - 3
Sold-1988 Suzuki Samurai
2002 Jeep TJ

Little trick to aid removal............

Start engine and let it run for about 5 mins,just enough to warm up the exhaust which aids in loosing the O2 sensor.Just be careful as the pipes will be warm/hot,more the cat but always makes for a easy time loosing the O2's.

As per usual, you guys are always right!

I crawl under my truck and I find this..


LAAME>

So I drove to the dealer to get this..


And now I have this.. (TRASH)



YES, I know I could have fixed those wires, but with them being so close to the connector, I didn't feel like playing with it or the connector, plus the rubber heat shield was all messed up.

It took absolutely no time to swap out, rolled underneath, unclipped the wires, unscrewed the sensor, and bam, now I have a brand new O2 Sensor.
I haven't driven it yet, so hopefully the CEL light will go out.

_________________
-dbk
SOLD2007 6 Speed - Projector Retrofit -Custom LED Tail Lights - Lights on Cowl & 130w 8" ProComps - Full Skids-RockLizard Super Skink Sliders-Front Hitch
Frankenlifted-Al's A-Arms-Goodyear Duractracs 31x10.5R15x7 Cragar D Window 4"bs-Cobra 75WXST - 4' Firestick
4.10s sitting in a box - 3
Sold-1988 Suzuki Samurai
2002 Jeep TJ