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  1. #1
    It got WIFI and touchscreen ! PWCGUY's Avatar
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    O2 Sensor Hidden in X manifold

    So I recently drilled and tapped my X manifold for an O2 sensor. This manifold has a factory boss on it next to the first water injection fitting which is the location I used.

    The issue is that the manifold is very thick in this loaction and even when the O2 sensor is screwed in all the way the sensor tip is still recessed in the threaded mounting hole. In other words the O2 sensor tip does not protrude into the exhaust gas passage. It this the correct arrangement ?


  2. #2
    HighPSI's Avatar
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    Mine works fine that way.

  3. #3
    Moderator beerdart's Avatar
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    Yes it is. You do not want the tip in the exhaust it will burn-up the sensor.

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    Moderator beerdart's Avatar
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    Heat-Sink Bung Extender (HBX-1) - P/N: 3729 - #3729

    The Bosch LSU4.2 wide-band O2 sensor (shipped as part of the LM-1 kit) is rated to operate at an exhaust gas temperature of < 1300 degrees (F), and a sensor housing temperature of < 900 degrees (measured at the bung) for maximum accuracy and control. When either of these operating temperature ranges is exceeded, the sensor can no longer be accurately controlled. Further, operating at or over these temperatures for any length of time can significantly reduce the lifetime of the sensor. The LM-1 is designed to display an error message under these conditions (currently 08- Sensor Timing Error) rather than provide inaccurate readings. For some turbo vehicles, rotary engines, and other setups, this error message can be encountered with annoying frequency.


  5. #5
    It got WIFI and touchscreen ! PWCGUY's Avatar
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    Thanks guys. Guess I'm good to go !

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    i have an 08 px w/ the rad4 plate and that heat-sink wont fit with the the lc-1 02 sensor, to tall!

    on the flip side my 02 sensor works fine, i leave it in all the time, and havent had any problems w/ it installed in the same location as you

  7. #7
    Moderator beerdart's Avatar
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    You would only need the heat sink if your bung is in the exhaust/J pipe.

  8. #8
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    true dat. i saw he had a px so i thought id just give the heads up

  9. #9
    Duke's Avatar
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    Quote Originally Posted by PWCGUY View Post
    So I recently drilled and tapped my X manifold for an O2 sensor. This manifold has a factory boss on it next to the first water injection fitting which is the location I used.

    The issue is that the manifold is very thick in this loaction and even when the O2 sensor is screwed in all the way the sensor tip is still recessed in the threaded mounting hole. In other words the O2 sensor tip does not protrude into the exhaust gas passage. It this the correct arrangement ?
    Works perfect that way!!

  10. #10
    Moderator beerdart's Avatar
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    So do the 04-07 manifolds

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