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What is this sensor?

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Kookabanus
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2012/08/17 17:13:14 (permalink)
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What is this sensor?

A while ago while changing struts, I noticed this sensor unplugged, which I assume has been since I got the car. It's a 2 wire sensor but the plug looked to have 4 pins if I remember correctly. At the time we wired it in so it wouldnt throw a CEL but I never noticed a difference to when it was out. Anyway just wondering what it is and whether it would make a difference replacing it. Cheers

#1


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    robk
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    Re:What is this sensor? 2012/08/17 17:34:48 (permalink)
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    I think it might be the post-cat oxygen sensor (the main one is pre-cat).
    I wouldn't be surprised if it made no difference having it unplugged.

    There is an extensive build thread for my car here: http://www.mr2australia.com/mr2play/tm.aspx?m=18316
    #2
    just_ace
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    Re:What is this sensor? 2012/08/17 17:46:20 (permalink)
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    hmm, i think you have the loom for a 4 wire O2 sensor, but it is perhaps connected to a cat temp sensor.
     
    you shouldn't get a CEL without an O2 sensor plugged in.
    #3

    robk
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    Re:What is this sensor? 2012/08/17 19:03:32 (permalink)
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    Oh yeah it could be a cat temp sensor, or what I said. I'm not sure.

    There is an extensive build thread for my car here: http://www.mr2australia.com/mr2play/tm.aspx?m=18316
    #4
    Kookabanus
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    Re:What is this sensor? 2012/08/17 21:36:37 (permalink)
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    I originally thought it was an o2 sensor also. I tried looking at some diagrams and it looks like it might be a temp sensor. Is it worth worrying about? 
     
     
    #5
    just_ace
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    Re:What is this sensor? 2012/08/18 10:14:44 (permalink)
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    nope. it's wired up wrong either way. should be able to disconnect it. cat temp sensor is pretty useless.
    #6

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