What o2 extender works?

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

  1. Toyotawild

    Toyotawild Well-Known Member

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    What o2 extender works to trick the ecu for no cel. Thanks
     
  2. kona61

    kona61 Well-Known Member

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    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
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    Toyotawild

    Toyotawild Well-Known Member

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

    Fast_Freddie Active Member

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    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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    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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    Yes, stock tune with Titan downpipe
     
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  15. AHP

    AHP Well-Known Member

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