Another question, are the NTK, different from NGK?
Nope, NTK and NGK are one-in-the-same. For some reason they brand their O2 sensors as NTK, even though they are made by NGK.
Another question, are the NTK, different from NGK?
Ok thanks, I am trying to order a new one now.Nope, NTK and NGK are one-in-the-same. For some reason they brand their O2 sensors as NTK, even though they are made by NGK.
Didn't you just put new OEM O2 sensors in?Ok thanks, I am trying to order a new one now.
Put in a new O2 sensor on 1/2, now to see if it throws a code again. Will update later.
Just confirming (thanks to this great thread!) - the sensors for my 1997 TJ 4 cylinder are NGK 23099 (downstream) and NGK 23506 (upstream)?? Also, I don't see any pictures of where the 2 sensors are on my Jeep - did I miss them, or are they not here? Finally, my car is not throwing any error codes, but the "O2" is blinking when my ODB2 reader powers up (I had the head replaced, and am trying to get this to pass smog - it's been 4 months since the head was replaced, so I assume it is the O2 sensors that are not resetting since the replacement?)
A week ago I was getting an O2 code at 127k miles on my '05 4.0L that I just got at 1/1. Two days ago, I replace it with a Bosch sensor, and it seems to have fixed the code. Is it possible that it works for me as a fluke? I got the part from AutoZone, do you think I would be able to return it and get the (cheaper!) NGK ones?
Update,
I replaced the bank 1/2 O2 sensor, and not long after when I drove it, like it did before, it threw the same code, heater response.
Not sure what to do now.
Since you didn't fill out your profile, I don't know what year your Jeep is. However, if it's an 05-06, there was a TSB on some of them where the check engine light wouldn't go off due to the PCM needing a software update.
Update, I replaced the bank 1/2 O2 sensor, and not long after when I drove it, like it did before, it threw the same code, heater response.
Not sure what to do now.
Update,
I replaced the bank 1/2 O2 sensor, and not long after when I drove it, like it did before, it threw the same code, heater response.
Not sure what to do now.
Thanks for the info, I'll try that. since it is still throwing the code every few times I drive it.I don't know if you figured this out yet but I have been digging for a while because I get the Bank 1 sensor 2 (P0141, Bank 2 (P0161 ?) sensor 2 Heater CEL from time to time and from what I have found ( at least for the 2003 ) is that the relay may have gone bad ( I found a reference to this for a Jeep GC somewhere else on the interwebs so I cannot take full credit) . I actually just replaced both of the rear sensors thanks to this thread and replaced the relay ( with NAPA Part number AR606 - $14.49- ) as well. See pictures below. I also traced the wires to see if I saw any visible damage but I didn't see anything.
The relay was in the fuse box under the hood next to the battery. Maybe you will get lucky and the 2004 is similar.
I haven't had a chance to see if this has worked for me yet but because the jeep is no longer my DD but I hope this helps you or someone else in the future!
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I just drove my jeep today started and it 4 or 5 times. Twice when it would have been cold enough to throw the code in the past. So far so good. I hope it works for you ..Thanks for the info, I'll try that. since it is still throwing the code every few times I drive it.
I just drove my jeep today started and it 4 or 5 times. Twice when it would have been cold enough to throw the code in the past. So far so good. I hope it works for you ..
Me too .. Jeep has 206,000 on the original manifold and exhaust. If this doesn't work Im gonna probably have to do the whole thing!!Thanks for the update. I hope it stays that way!