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O2 Sensor Harness Extensions for LT Headers

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Master Z, Apr 3, 2019.

  1. Apr 3, 2019 at 1:16 PM
    #1
    Master Z

    Master Z [OP] Well-Known Member

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    Peachy Peach Little Tree Air Freshener
    Has anyone found a reasonably priced set of O2 sensor extensions for use with LT headers?
    I'm gathering the parts I need for the install.(extensions, bung plugs, gaskets etc.)
    I've been digging around on ebay and found these.

    https://www.ebay.com/itm/02-Oxygen-...05-fits-Toyota-o2-Extender-Camry/322299357010

    It lists a few models it fits with the 05-09' 4.0L 4Runner being one of them.
    That being said, on URD's site, the harness extensions that fit the 05-09' 4Runners are the same ones that fit the 05-15 4.0L Tacos.

    https://www.urdusa.com/urd-o2-sensor-extension-harness/

    Would it be safe to assume the ebay wires would work?
    For half the cost, I think I'm going to try them out. I'll take a look at my plugs to see if it's similar, but I know you cant always judge based on the stock photos shown on some listings.

    Any one have experience with them?

    Thanks in advance.
     
    bobsuruncle likes this.
  2. Apr 23, 2019 at 11:55 AM
    #2
    bobsuruncle

    bobsuruncle I void warranties

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    I don't see why they wouldn't work. As long as the plugs are the same, which judging by the picture shown in that listing, they are. I've been looking for another option besides the urd extensions, and was going to just cut and splice another foot of wire and use heatshrink at the splices.

    Don't quote me on this but I'm 99% sure since obd2 was standardized in 1996, all Toyota vehicles use the same plug for the O2 sensor.


    Edit: looking closer, the plugs on the afr/upstream sensors are keyed different than the O2/downstream plugs so you'll need to pay attention to that you'll be modifying the plug to fit. They are similar in shape but have different notches in the sides.


    Here's an afr sensor plug, shown on the denso site.

    Screenshot_20190423-132003.jpg

    And here's what the O2 sensor plug looks like.

    Screenshot_20190423-132349.jpg
     
    Last edited: Apr 23, 2019
    b_r_o likes this.
  3. Apr 23, 2019 at 1:57 PM
    #3
    Master Z

    Master Z [OP] Well-Known Member

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    Peachy Peach Little Tree Air Freshener
    Looking at the AFR plug it looks like it should work.
    I need the extension at the header(AFR sensor) and not further down stream at the O2 sensor.
    I guess I should have clarified that. Thanks for posting the pics to help identify the differences.
    I should have all the parts in to finally do the header install soon.
     
  4. Apr 23, 2019 at 2:23 PM
    #4
    bobsuruncle

    bobsuruncle I void warranties

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    North Bend, WA
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    06 TRD OR DCSB and 1991 Lexus LS400
    ARB bull bumper, warn 9000 with synthetic rope, icon CO's & 700lb coils, road armor rear bumper, dakars + Archive Garage shackle flip.
    Yeah, I didnt get the memo about putting the afr sensors in the lower bung until after I had installed my dtlt's. I've been running them in the upper bung for now.
     
  5. Apr 23, 2019 at 3:48 PM
    #5
    bobsuruncle

    bobsuruncle I void warranties

    Joined:
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    North Bend, WA
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    06 TRD OR DCSB and 1991 Lexus LS400
    ARB bull bumper, warn 9000 with synthetic rope, icon CO's & 700lb coils, road armor rear bumper, dakars + Archive Garage shackle flip.
  6. Apr 23, 2019 at 3:55 PM
    #6
    Master Z

    Master Z [OP] Well-Known Member

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    2010 Tacoma 4.0L AC SR5 Prerunner BSP
    Peachy Peach Little Tree Air Freshener
    Thanks!
     
  7. May 3, 2019 at 11:06 AM
    #7
    bobsuruncle

    bobsuruncle I void warranties

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    Male
    First Name:
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    North Bend, WA
    Vehicle:
    06 TRD OR DCSB and 1991 Lexus LS400
    ARB bull bumper, warn 9000 with synthetic rope, icon CO's & 700lb coils, road armor rear bumper, dakars + Archive Garage shackle flip.
    @Master Z did you ever get a set of extensions?
     
  8. May 6, 2019 at 9:17 AM
    #8
    Master Z

    Master Z [OP] Well-Known Member

    Joined:
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    Male
    Vehicle:
    2010 Tacoma 4.0L AC SR5 Prerunner BSP
    Peachy Peach Little Tree Air Freshener
    Was about to order this week. I'll post it in my thread thing when I install.
     

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