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Thread: anybody used GM part number 12581687 with an NGK AFX?

  1. #21
    Tuner in Training
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    Hey Guys I just wanted to bump this somewhat old thread to see if anything else was determined. Or if any one has found a suitable, affordable, replacement for the NTK by now?

  2. #22
    Senior Tuner DSteck's Avatar
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    Quote Originally Posted by safira218 View Post
    I don't believe it's personal opinion... I am fairly confident that the Bosch sensor gets wrecked under extreme heat or leaded fuel usage.
    It does. My NTK has lasted through nitrous and leaded fuel but people with Bosch sensors are killing them.

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  3. #23
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    So did the GM part number work?

  4. #24
    Senior Tuner DSteck's Avatar
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    No idea. I bought my replacement from oxygensensor.net.

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  5. #25
    Advanced Tuner c.u's Avatar
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    the bosch 15401 just got it from autozone. is stamped ntk Lzao8-h6. $96 buck`s

  6. #26
    Senior Tuner LSxpwrdZ's Avatar
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    I ordered a 15401 as well and it's the same sensor that my previous NTK sensor was. It was just under ~$86 with my discount!
    James Short - [email protected]
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  7. #27
    Senior Tuner DSteck's Avatar
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    Quote Originally Posted by LSxpwrdZ View Post
    I ordered a 15401 as well and it's the same sensor that my previous NTK sensor was. It was just under ~$86 with my discount!
    Yep, buddy of mine ordered this one and it was a dead match. Beats paying $150 online.

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  8. #28
    Senior Tuner LSxpwrdZ's Avatar
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    So has anyone determined if the new replacement Bosch sensor 15401 is still a good option? Replaced mine a few months back and the sensor looks nothing like an NTK sensor now. I have been using it anyway and seems to be working but I'm skeptical not being an actual NTK sensor.

    Guess it's back to ordering the 24302 from amazon or BMotorsports...
    James Short - [email protected]
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  9. #29
    Senior Tuner DSteck's Avatar
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    I've been using it and it seems OK. I don't have any long term data though.

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  10. #30
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    I'm going to go ahead and subscribe here. I love my 1st Gen AFX setup and if I can't find a replacement sensor when if finally dies, I might have to cry.
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  11. #31
    Tuner in Training bmotorsports's Avatar
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    Quote Originally Posted by A_W_O_L View Post
    I'm going to go ahead and subscribe here. I love my 1st Gen AFX setup and if I can't find a replacement sensor when if finally dies, I might have to cry.
    We carry every single replacement component on the AFX. Controller, connectors, harness, sensors (several options), etc. We plan to support this product for years to come, so replacement parts are not going away.

    I should note that the NTK AFRM is now an in-house design for NTK that was primarily focused on cost reductions. It is not a 2nd Gen AFX and no longer made by ECM (NTK does market it as a 2nd gen unit however). It cannot use the same sensors and has been on backorder the better part of 2015 now. We carry all the replacement parts for the NTK AFRM. Ballenger Motorsports is the only company to offer replacement sensors for the NTK AFRM, replacement connectors, and a replacement harness. http://www.bmotorsports.com/shop/pro...oducts_id/2334

    In late 2014, we released the AFR500 which is identical to the AFX and made by ECM. We felt there were excellent reasons to continue the higher quality, higher cost AFX product and now offer both products side by side. The Ballenger Motorsports AFR500 / AFX is for the professional or serious tuner and the NTK AFRM is for the more typical street tuner / budget system.
    http://www.bmotorsports.com/shop/pro...oducts_id/2337

  12. #32
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    Thanks for the reply and props for pulling that together. I have a lot or hours/miles on my sensor and that thing is still dead on... So much so that it scares me how repeatable the results are... I shake my head and smile. Again thank you for doing this... The high-temp wire, longer lengths, and what seems like smaller connectors are a nice touch. *edit* after a closer look the connectors are the same size as the older AFX setup.

    Quote Originally Posted by bmotorsports View Post
    We carry every single replacement component on the AFX. Controller, connectors, harness, sensors (several options), etc. We plan to support this product for years to come, so replacement parts are not going away.

    I should note that the NTK AFRM is now an in-house design for NTK that was primarily focused on cost reductions. It is not a 2nd Gen AFX and no longer made by ECM (NTK does market it as a 2nd gen unit however). It cannot use the same sensors and has been on backorder the better part of 2015 now. We carry all the replacement parts for the NTK AFRM. Ballenger Motorsports is the only company to offer replacement sensors for the NTK AFRM, replacement connectors, and a replacement harness. http://www.bmotorsports.com/shop/pro...oducts_id/2334

    In late 2014, we released the AFR500 which is identical to the AFX and made by ECM. We felt there were excellent reasons to continue the higher quality, higher cost AFX product and now offer both products side by side. The Ballenger Motorsports AFR500 / AFX is for the professional or serious tuner and the NTK AFRM is for the more typical street tuner / budget system.
    http://www.bmotorsports.com/shop/pro...oducts_id/2337
    Last edited by A_W_O_L; 10-02-2015 at 12:17 AM.

  13. #33
    Has anyone else had issues with the thread on their NTK sensors. I always use a small amount of thread/copper grease after I had one strip out on me but after the second I became a little suspect. I managed to salvage a turn or two of thread with a die (chaser) but just wondered if anyone else had experienced it over the years. I've had three AFXs (2x NTK and 1x AFR500) and several sensors also and still rate the controller far higher than previous WBs (DJ and micro tech which were both far more expensive)

  14. #34
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    I haven't. Well, more correctly, the problem I had was my fault for not running a tap into the boss first... Exhaust shop got some splatter in the threads. After I got the sensor out I bought a tap and die so I could chase each time before install it, and when I take it out before putting the plug back in. I'm still on my original sensor and other than that one time (my fault not the sensors) it's been flawless.

  15. #35
    Tuner in Training bmotorsports's Avatar
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    Quote Originally Posted by A_W_O_L View Post
    Thanks for the reply and props for pulling that together. I have a lot or hours/miles on my sensor and that thing is still dead on... So much so that it scares me how repeatable the results are... I shake my head and smile. Again thank you for doing this... The high-temp wire, longer lengths, and what seems like smaller connectors are a nice touch. *edit* after a closer look the connectors are the same size as the older AFX setup.
    Thanks! Great to hear it is working well for you. The connectors are the same. The harness is 100% compatible with the AFR500 & AFX. We increased the wire gauge, added a fuse, improved some joints, improved some connections, & went to higher temp but smaller sleeving on the standard 13ft harness. The AFX sleeving was unnecessarily huge, so by volume the harness is much smaller now and easier to manage and install. We also added a 7ft harness option as well as a 24ft option with additional step up in wire gauge. We also make a much wider variety of sensors available.

    We have some updates coming in 2016 that will add significantly to our list of improvements as well!

    Regarding the thread issue, keep the threads clean. Chasing them with a tap is a great idea. Apply o2 safe anti-seize & don't overtorque the sensor. We've taken several of the Bosch & NTK sensors in and out of various cars and haven't had an issue yet. We have had issues with stock 4 wire sensors in 10+ year old installations

  16. #36
    Senior Tuner LSxpwrdZ's Avatar
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    No issues with threads here either. I'm generally very picky on what hole I stick it in.... LOL. Run a tap or thread chaser in bungs that aren't clean and that helps keep the threads clean on the sensor.
    James Short - [email protected]
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    2020 Camaro 2SS | BTR 230 | GPI CNC Heads | MSD Intake | Rotofab | 2" LT's | Flex Fuel | 638rwhp / 540rwtq
    2002 Camaro | LSX 427 | CID LS7's | Twin GT5088's | Haltech Nexus R5 | RPM TH400