NTK 23151

[grumpyoldfart]

I have a 1998 TJ with a 4.0 and 5-speed. I have an oxygen sensor problem, and I called NTK (877.473.6767 X 2) to see if 23151 was still produced. The answer is "No", and the tech could not offer an alternate NTK sensor. Amazon sold me a NTK 23179, but that does not perform correctly.

Does anyone have a suggestion for a replacement that works?

 

[CharlesHS]

You could try Bosch 23151 or Denso 234-4592 which are listed to replace the 23151.

https://www.ebay.com/itm/1256380338...pid=5337789113&customid=&toolid=10001&mkevt=1
https://www.ebay.com/itm/1152742026...pid=5337789113&customid=&toolid=10001&mkevt=1

 

[TheBoogieman]

Denso.

 

[grumpyoldfart]

Thanks! I'll try the Denso version. I really don't want to get into a carb and distributor retrofit, but the continuing drivability issues are unacceptable. A carb and an HEI are darn near foolproof. We don't have emissions inspections, so no telling what else might fall off.

 

[TheBoogieman]

https://partlimit.com/products/oxyg...ep-cherokee-grand-cherokee-wrangler-2-5l-4-0l

 

[grumpyoldfart]

https://partlimit.com/products/oxyg...ep-cherokee-grand-cherokee-wrangler-2-5l-4-0l

Thanks for your suggestion!

 

[Gilaguy23]

I have a V10 F250 and kept getting a PXXXX code??, pressure differential sensor. I ordered up a NTK replacement. Installed it, cleared the code which came back multiple times. I Cleaned the system, replaced the hoses, did a full cleaning of the system and still the code. Bought a Motorcraft one. A year later and then of thousands of miles later no code. I kinda lost faith in NTK or any after market after that. OEM is the way to go when you can, hopefully the Denso fixes your issues.

 

[macleanflood]

I have a 99 F250/V10.

Walker worked perfectly in my 2001 F250/V10.

Didn't work in my 97. Nor did a new NGK. A used NGK out of a 2000 Sahara I was parting out works perfectly.

Best thing to do with O2s is monitor live ODB data. O2 voltage and fuel trims. A $30 ODB Bluetooth dongle and the free app Torque Lite will do the trick.

Bosch sucks.

53 pages of light reading...first post sums up part numbers. NGK is available.

Thread 'The Official Jeep Wrangler TJ Oxygen (O2) Sensor Thread'

Mar 5, 2017

What are Bank 1, Bank 2, etc.?
Since this question pops up from time-to-time, here's an easy to follow diagram that illustrates what they mean when your OBDII code scanner (or manual) tells you something like "O2 sensor, Bank 1, Sensor 2":

What does upstream and downstream mean?
Simple, upstream means the O2 sensor is "upstream" of the catalytic convertors, meaning before the catalytic convertors. Downstream means the O2 sensor is "downstream" of the catalytic convertors, meaning after the catalytic convertors.


What brand of...

• Chris
• bank 1 bank 2 catalytic convertor cats emissions o2 sensor oxygen sensor sensors
• Replies: 1,045
• Forum: TJ Resources

• 
• 

-Mac

 

[GregBelleville]

Rock Auto is showing Mopar 02s in stock, they're expensive, but should be more trustworthy.

 

[CharlesHS]

IF you decide to order the O2 sensor(s) from Rock Auto; I would call them to ensure they actually have them in stock...
Not that you are on long term backorder....