What o2 extender works?

Discussion in 'B58 6-Cyl Engine, Exhaust, Drivetrain, Bolt-Ons' started by Toyotawild, Sep 22, 2019.

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  1. Toyotawild

    Toyotawild Well-Known Member

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    #1 Sep 22, 2019
    What o2 extender works to trick the ecu for no cel. Thanks
     
  2. kona61

    kona61 Well-Known Member

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    #2 Sep 22, 2019
    I've looked into it and I doubt any will work reliably. The O2 sensors are too sensitive in these cars and it will likely trigger a CEL if you get on it.
     
  3. OP
    OP
    Toyotawild

    Toyotawild Well-Known Member

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    #3 Sep 22, 2019
    What do we have for options then. Jb4 support the cel delete yet. Or is bm3 out only option
     
  4. GT-3

    GT-3 Active Member

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    #4 Sep 22, 2019
    Not sure what spacer setup Titan Motorsports uses but no cel lights with piggyback setup
     
  5. kona61

    kona61 Well-Known Member

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    #5 Sep 22, 2019
    Oh yea? I wonder if their module mitigates the CEL
     
  6. OP
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    Toyotawild

    Toyotawild Well-Known Member

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    #6 Sep 22, 2019
    It is a fabspeed precious metal extender. Pretty pricey but if it works its worth it. Wish jb4 could take care of it.
     
  7. kona61

    kona61 Well-Known Member

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    #7 Sep 22, 2019
    Yea, I think it will work most of the time, but a CEL may trigger under hard driving.
     
  8. Twisted Tuning

    Twisted Tuning Well-Known Member
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    #8 Sep 23, 2019
    O2 spacers will usually not work for the long time on these ECUs and sensors because they are sensitive and the ECU watches everything. We can fix you with a tune. Hit me up.
     
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  9. larrymz3

    larrymz3 Well-Known Member

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    #9 Sep 23, 2019
    http://www.bigdaddiesgarage.com/mini-cat-cel-fix.html

    These things rock - they are basically mini cats (minus the drawbacks) and you will not get a CEL with it installed.

    I've had these installed on several Lambo's I've owned with aftermarket exhausts. No more CEL.
     
  10. kona61

    kona61 Well-Known Member

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    #10 Sep 23, 2019
    That's super neat, never heard of it but I like it. The only issue is I don't know if it will fit, it's pretty tight down there.
     
  11. Twisted Tuning

    Twisted Tuning Well-Known Member
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    #11 Sep 23, 2019

    i've seen those before, but never tried em. pretty cool concept
     
  12. fast_freddie

    fast_freddie Active Member

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    #12 Sep 24, 2019
    That will get rid of the P0420 Cat efficiency code, but with spacers and stuff I have been getting a P0141 OBD-II Trouble Code: O2 Sensor Heater Circuit Malfunction. These sensors are very very sensitive as previously stated... Imma try one other style and if that doesn't work, I will live with the light until I get tuned... FYI, these are the ones I have tried so far...

    1st one I tried with smallest orifice... got P0141 permanent code
    2nd one I tried would still not pass P0141 due to being over the ohmic value threshold
    3rd one passed p0141 a few times but failed while sitting in traffic today, and also got a P0420 permanent code with it as the orifice is too big
    4th one is on the way, it has a built in mini cat to kill the P0420, and hopefully it works to kill the P0141as well... and it will be the last I try

    defouler 1.jpg

    Defouler 2.jpg

    defouler 3.jpg

    Defouler 4.jpg
     
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  13. MA617M

    MA617M Well-Known Member

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    #13 Sep 25, 2019
    Keen to hear how you go. Are you running a decat dump on the factory tune so far?

    :)
     
  14. fast_freddie

    fast_freddie Active Member

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    #14 Sep 25, 2019
    Yes, stock tune with Titan downpipe
     
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  15. AHP

    AHP Well-Known Member

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    #15 Sep 26, 2019
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