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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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    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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    Graham, WA
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    Move to Washington, no emissions after next year [emoji41]
    Sunburst 02 pro5 200k+ miles
    Mystery 4-1 header, mystery short ram, moog control arms, moog front endlinks, moog tie rods, moog trailing links, tein lowering springs, gutted interior
    All about them stickers, crumpled panels, and mismatched paint yo

  7. #7
    Registered Member

    protege5

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    GA
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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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