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O2 Sensor question

This is a discussion on O2 Sensor question within the General Help forums, part of the LSx Technical Help Section category; Are all O2 sensors the same in function? The reason I ask is the 97 Lumina that I've been working ...

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    Junior Member Cougar281's Avatar
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    O2 Sensor question

    Are all O2 sensors the same in function? The reason I ask is the 97 Lumina that I've been working on needs a new one. It has four wires and a black plug. I picked up a used on in a junkyard that has a grey plug and four wires (came off a 2003ish GM car). The plugs are the same configuration, except the grey one has an extra protrusion on the inside that prevents the black plug from working. Would the newer sensor work with the 97 PCM if I where to either modify the grey plug or swap the plugs?

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by Cougar281 View Post
    Are all O2 sensors the same in function? The reason I ask is the 97 Lumina that I've been working on needs a new one. It has four wires and a black plug. I picked up a used on in a junkyard that has a grey plug and four wires (came off a 2003ish GM car). The plugs are the same configuration, except the grey one has an extra protrusion on the inside that prevents the black plug from working. Would the newer sensor work with the 97 PCM if I where to either modify the grey plug or swap the plugs?
    What motor? IMHO I would not cut the 02 wires. They (ecm) are picky about what you do with the 02 wires. I would consider the proper replacment 02 before I'd ever cut the wires.
    Last edited by Smittro; 10-31-2009 at 07:38 AM.
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    Junior Member Cougar281's Avatar
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    The 97 is a 3100. I don't remember what the newer sensor came off of. If I where to change the plug, I wouldn't cut the wires, just slide the pins out of the plug. Or modify the grey plug to remove the "protrusion".

    Edit: The "new" sensor is a Denso, markings as follows:

    12559850
    DENSO
    234000-5080
    12U09
    Last edited by Cougar281; 10-31-2009 at 12:53 PM.

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    Quote Originally Posted by Cougar281 View Post
    The 97 is a 3100. I don't remember what the newer sensor came off of. If I where to change the plug, I wouldn't cut the wires, just slide the pins out of the plug. Or modify the grey plug to remove the "protrusion".
    Ah nice to see another 60*v6er here. Okay in that case assuming the junk yard sencor is'nt bad you should be okay. Just do'nt cut the wires and you should be good..
    Last edited by Smittro; 10-31-2009 at 07:51 AM.

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