O2 Sensor Ground Fault Code
08-05-2009, 09:35 AM
#31
JK Freak
Join Date: Jul 2008
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I will head off the question right now before you all ask it. Why did you not just trade it in under lemon law?
I LOVE MY JEEP! It has a lifetime warranty and I have a lot of blood/sweat equity in it, I do not want to start over. Why don't you trade in your GF when she gets sick
Common she is family good bad or PCM.
I LOVE MY JEEP! It has a lifetime warranty and I have a lot of blood/sweat equity in it, I do not want to start over. Why don't you trade in your GF when she gets sick
Common she is family good bad or PCM.
08-28-2009, 05:54 AM
#32
JK Enthusiast
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I will head off the question right now before you all ask it. Why did you not just trade it in under lemon law?
I LOVE MY JEEP! It has a lifetime warranty and I have a lot of blood/sweat equity in it, I do not want to start over. Why don't you trade in your GF when she gets sick Common she is family good bad or PCM.
I LOVE MY JEEP! It has a lifetime warranty and I have a lot of blood/sweat equity in it, I do not want to start over. Why don't you trade in your GF when she gets sick
Common she is family good bad or PCM.what kind of love that
i will replace my GF if she always sick
02-24-2010, 02:36 PM
#33
JK Newbie
Join Date: Feb 2010
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I just a 2009 x. The 1st week had 1 o2 sensor go out, in shop got it fixed, 2nd week o2 sensor in shop got it fixed, this week time to try the pcm. I have heard this issue on and the pcm has fixed most problems. I sure hope so
03-15-2017, 08:03 PM
#34
JK Newbie
G104 g104
At the beginning of this thread ground #G104 was referenced and I am looking for the same ground. Using the same service information referenced earlier in this post, I found that ground. G104 is part of the "engine wiring harness" and not shown in that companies service literature. After following the wires, I have located the ground connection on the engine block behind the heat shields for the Passenger side Catalytic converters. Its kind of a bugger to get to. The EGR and the 4 O2 sensors appear to be anchored there. I am having an EGR issue and have a thread started for that already. I'll update there if cleaning this connection fixed my issue. Anyway, G104 on passenger side of engine block. Shout it out the the universe............
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Firebourne (03-14-2020)
08-03-2018, 06:53 PM
#36
As Naughtjosh posted up top, this video shows this bad grounding issue (G104) with 3.8 Jeep JK O2 sensors' ground. The wires break off from the ground eyelet connector.
Last edited by RoubsX2; 08-03-2018 at 08:55 PM. Reason: Clarify which ground point in the video.
The following 2 users liked this post by RoubsX2:
Firebourne (03-14-2020),
sarguy (09-04-2021)
10-27-2018, 02:03 PM
#37
JK Newbie
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Just fixed my O2 issues P0032 and P0052. Didn't feel like fighting to get to the ground post behind heat shield so i just soldered in new grounds for the 2 O2 sensors having problems. While under there i found previous owner has already done this to B1 S2, one more to go, I'll just wait til it codes out and replace the last 02 sensor ground. The above video was a great help.
06-07-2020, 01:00 PM
#38
Just fixed my O2 issues P0032 and P0052. Didn't feel like fighting to get to the ground post behind heat shield so i just soldered in new grounds for the 2 O2 sensors having problems. While under there i found previous owner has already done this to B1 S2, one more to go, I'll just wait til it codes out and replace the last 02 sensor ground. The above video was a great help.
06-30-2020, 04:08 PM
#39
JK Newbie
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I have a very similar problem, but It shows me heater circuit low for all four o2 sensors. P0031, P0037, P0051, and P0057. Ive checked the wires on the battery and looked for wires to the sensors as well, but I havent seen anything wrong at all.