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Thread: Deleting the downstream o2 sensor

  1. #1
    Registered Member Big Ds mp5's Avatar

    2002 Mazda protege5

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    Deleting the downstream o2 sensor

    I have a JASMA header installed and has no bung for the downstream o2 sensor. What can I do to trick the system into thinking ones there?

  2. #2
    Registered Member Big Ds mp5's Avatar

    2002 Mazda protege5

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    Here's a pic

  3. #3
    The Diagram Dude pcb's Avatar

    2002 mazda protege 5

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    I think you might be out of luck.
    The non-fouler trick won't work for you.

    I remember there is an electronic version of the non-fouler but I think you still need to have the O2 sensor in the exhaust stream.

    You might be able to find the electronic version and related info with a Google search.

  4. #4
    Registered Member Big Ds mp5's Avatar

    2002 Mazda protege5

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    Guess I'll just have to get a bung welded in. I have no cats. Just a vibrant resonator and apex n1 muffler 2.25" pipe

  5. #5
    Registered Member

    '02 Mazda Protege5

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    Mount Kisco NY
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    I'm so jealous of you guys running no cats, deleting O2 sensors, etc. I would never be able to pass NY inspection! lol

  6. #6
    Registered Member STudMUffin1177's Avatar

    Mazda protege5

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    Move to Washington, no emissions after next year

  7. #7
    Registered Member

    protege5

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    Sometimes I wish FL and GA would have inspections. GA does in metro atlanta counties but not the rest of the state. Nothing is worse than getting stuck behind some d*** in a beat up old junker car or truck that's leaving a smoke screen down the road so bad you can't even see.

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