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2.0 LNF Engine: O2 Sensor Replacement Bank 1

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2.0 LNF Engine: O2 Sensor Replacement Bank 1

Old 07-21-2011, 01:18 AM
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O2 Sensor Replacement Bank 1

This was a hard install. The difficulty was getting enough space to sqeeze my hands in there to get at the O2 sensor.

Required Parts:
New O2 Sensor

O2 scoket, an 5/8 extension and 5/8 ratchet

Penetrating Oil

Location of the O2 is key. I would recommend that you let the engine cool down and start. There is always some guy that says **** it. Well, dont.



It is easiest if you squeeze your arm between the fuse box and the coolant line. This is the place with the most room. Follow the O2 sensor wire to the unit to get a better feel on it for location.



I would also take the clip off the O2 sensor because once you start to spin it, the cord will get tangled.



The yellow tab comes out with ease and the remaining black tab push down and the harness will unclip. Spray some *********** oil on the O2 it will come out quick.

I stuck the O2 socket on the sensor. I stuck the extension on the socket. I put the ratchet into the extension. You will understand once you stick your hand down there. It needs to be done in peices to ease the pain.

Once on the O2, is out. The new one gets to go in. Take a towel and wipe up the oil and stick the head of the O2 down there. I took the cap off once down there and let it fall to the floor. Dont clip in the harness until your finished screwing it in. This will allow more movement freedom and no twisted wires.

Once the O2 is in, do the three part tool again. This will get it tightened down. Clip in the harness and dont forget the yellow peice.

All done.

Last edited by DillySS; 07-21-2011 at 07:33 PM.
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Old 07-21-2011, 09:15 AM
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Good timing on the write-up! I am replacing my O2 sensor this weekend.

Seems like a real PITA!
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Old 07-21-2011, 07:32 PM
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It is.
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Old 07-22-2011, 12:57 PM
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good write up. i had a cel for bank one o2 sensor but when i replaced it, the light was/is still on. suggestions?
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Old 07-22-2011, 02:23 PM
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Battery disconnect for 30 minutes and you should clear that code.
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Old 07-22-2011, 02:53 PM
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i did. and it did clear for a while. first time i got on the hwy after that the cel came back on. 3 codes this time, all bank one sensor. the sensor isnt even a week old yet
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Old 07-22-2011, 03:05 PM
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What are the codes?
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Old 07-22-2011, 03:13 PM
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idk specifically. had it checked at autozone since i was only like a min away. the guy said i hade 3 codes, all for the first o2 sensor.
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Old 07-22-2011, 03:26 PM
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I changed mine a few months ago and it wasn't hard at all. The key thing is to make sure the car has cooled down lol.
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Old 07-22-2011, 03:41 PM
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If it wasn't the P0130 code then it might have to do with something like the PCM not reading correctly. I have only read that the P0130 code is really the only one that I would change out the sensor for.

Got a header? Downpipe? If so, check that **** for leaks. A tiny bit of air can do lots of damage.
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Old 07-24-2011, 06:10 PM
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I just wanted to do a follow up that it was easier than I thought to do this. Without this write-up, I'm certain I would have struggled with inefficient ways of going about removing the old O2 sensor.

I was able to switch it out in a matter of minutes.

Thanks again for the write-up!!!
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Old 07-25-2011, 10:19 AM
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WHERE WERE YOU 2 MONTHS ago lol is this the 2nd sensor?
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Old 07-25-2011, 06:50 PM
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This is sensor 1 in the upper pipe near turbo. The second one is under the car. That one is really easy.
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Old 08-21-2011, 09:39 AM
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That is a 3/8s extension and a 3/8s ratchet not 5/8s
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Old 08-19-2012, 10:00 AM
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Great write up! Really glad I found this!
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Old 09-03-2012, 01:04 PM
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Originally Posted by bri2203 View Post
That is a 3/8s extension and a 3/8s ratchet not 5/8s
Mines a 1/2, just depends on your socket.
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Old 03-12-2013, 05:12 PM
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Is this one of the possible P0131 codes (Or as Firestone will call it P013A)
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Old 05-16-2014, 09:14 AM
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my threw the P2237 code. Should i replace the o2 sensor?
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Old 09-26-2014, 01:47 PM
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sub'd for later
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Old 02-03-2016, 06:19 PM
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Bringing back from the dead I need the part number for the sensor if anyone knows and to keep it here since the op didn't post it up
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Old 02-03-2016, 06:55 PM
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Seems like I found it

GM 12589380
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Old 02-03-2016, 07:57 PM
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I have one sitting on my desk at work. It is used but OEM. 55k on it. I replaced it thinking it was bad. It wasn't.
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Old 02-14-2016, 12:16 PM
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Originally Posted by Snail_SS
Bringing back from the dead I need the part number for the sensor if anyone knows and to keep it here since the op didn't post it up
Part #12589380

EDIT***I see you found it didn't see there was another page lol. I just ordered one because I keep getting this code every so often***
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Old 02-14-2016, 05:04 PM
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Yeah I kept getting a p0131 every so often
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Old 11-28-2017, 04:24 PM
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All the pictures in this thread are dead links . Can anyone upload some pics again showing where this sensor is located / how to get to it ?
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