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Thread: Exhaust sensors

  1. 14th August 2014, 06:28 AM #1
    ice4x4's Avatar
    ice4x4
    ice4x4 is offline Fossicker
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    Exhaust sensors

    Can anyone tell me what the extra 2 sensors in my exhaust are for?
    The 2 that are downstream of the lamda sensors. It is off a 1993 disco 1 3.9 v8


    ImageUploadedByAULRO1407965220.841744.jpg
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  2. 14th August 2014, 07:21 AM #2
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    Pedro_The_Swift
    Pedro_The_Swift is offline The MOD Father
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    hmm, look like more O2 sensors,,
    but in a '93??
    also the pipes look like they've had the cats cut out,,
    but in a '93?
    "How long since you've visited The Good Oil?"

    '93 V8 Rossi
    '97 to '07. sold.
    '01 V8 D2
    '06 to 10. written off.
    '03 4.6 V8 HSE D2a with Tornado ECM
    '10 to '21
    '16.5 RRS SDV8
    '21 to Infinity and Beyond!

    1988 Isuzu Bus. V10 15L NA Diesel
    Home is where you park it..

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  3. 14th August 2014, 07:54 AM #3
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    ice4x4
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    Yeah no idea what I have got. I was told it was a 93 but the VIN says it's a 90. But with a 3.9 and cats?

    I think it may have originated in Japan. The extra sensors were not connected into the efi loom.

    Not that bothered as I am fitting the engine into my rrc and won't be using them but am just curious as why they are there

    The sensors are connected to a box like this on on each side.

    ImageUploadedByAULRO1407970463.308947.jpgImageUploadedByAULRO1407970482.031541.jpg
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  4. 14th August 2014, 07:58 AM #4
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    ice4x4
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    It appears I've answered my own question.

    Cat overheat sensors

    http://forums.lr4x4.com/index.php'showtopic=35465
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