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AnsweredWhats this ? And why isnt anything connected to it ...?

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Locked On
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2016/08/13 11:54:43 (permalink)
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Whats this ? And why isnt anything connected to it ...?

I got this little clean up toy . 
Lots done , lots more to do as I learn more ...
But ..
Whats this ?  And why isnt anything connected to it ...?
 
Look at the part with the electrical plug on it & two hose ports going out the bottom of it .

#1
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    robk
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/13 12:04:11 (permalink)
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    I think it's the valve which raises the idle speed when the air conditioner is on.

    There is an extensive build thread for my car here: http://www.mr2australia.com/mr2play/tm.aspx?m=18316
    #2
    Reddtarga
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/13 13:02:44 (permalink) ☼ Best Answerby Locked On 2016/08/13 17:21:50
    +1 (1)
    That's right it's the A/C idle up control.
    One hose goes to a 'T' connection that goes to the the intake hose, and the other goes to the top of the
    intake manifold (the one closest to the bulkhead).
    Looks like you have the hoses sitting there anyway. Are they just not connected?
     

    post edited by Reddtarga - 2016/08/13 13:20:21

    1990 ADM NA
     
     
     
     
     
     
    #3

    Locked On
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/13 17:24:58 (permalink)
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    Looks like yout right ! 
    Why would someone do this ...? 
     
    post edited by Locked On - 2016/08/14 10:57:57
    #4
    Locked On
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/13 17:57:24 (permalink)
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    Idles lumpy now with hoses connected .
    So  the sensors stuffed? 
     
    #5
    sprigs
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/13 21:31:37 (permalink)
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    The a/c idle up valve raises your idle rpm when A/C is turned on, but if its faulty it could explain why the hoses were blocked off.
     
     
     
     
    #6

    Reddtarga
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/14 13:39:17 (permalink)
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    If the A/C is switched off the idle up valve should be closed if it is working properly. (which you could check)
     
    My Gen 2 NA normally runs and idles fine, but if I disconnect the hose going to the intake manifold (post throttle) the motor will race, because it is the same as opening the throttle.
    The other hose is pre throttle so it probably won't affect much if it is disconnected except let unfiltered air into the intake hose and ISC.
     
    You have not indicated how well (or otherwise) the motor was running with the hoses disconnected.
     
     

    1990 ADM NA
     
     
     
     
     
     
    #7
    Locked On
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/14 14:49:18 (permalink)
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    Motor was running fine before with them plugged up .
     
    Whats this other lead disconnected & taped up ?
    #8
    sprigs
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/14 15:27:57 (permalink)
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    Well in the first picture you posted that connector was already plugged into the A/C idle vavle.  I'm guessing you unplugged it to get the hoses connected and forgot to plug it back in?
     
     
    #9
    Locked On
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/15 09:25:54 (permalink)
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    No Sprigs , im referering to the other cable with the white tape on the end next to the main plug,  the both come out of the same loom ....
     
    Someone has cut this & taped it up 
    #10
    Reddtarga
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/15 10:02:37 (permalink)
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    My motor has a plug in exactly the same place to but not plugged into anything, and I have also seen other ADM Gen 2 NA models exactly the same,
    Probably because the same loom is used on various other Toyota models and that plug is not used on the SW20 ADM NA 
     
     
     

    1990 ADM NA
     
     
     
     
     
     
    #11
    sprigs
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/15 21:29:24 (permalink)
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    Oh yeah my bad I see it now, not sure what it is. But looks like Reddtarga has shed light on it.
     
     
     
    #12
    Zeus
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    Re: Whats this ? And why isnt anything connected to it ...? 2016/08/22 16:34:52 (permalink)
    +1 (1)
    It's only an A/C. Drop the whole system out. Call it weight reduction 😉. That's what the removable T-tops are for. When hot, remove. 😂😂
    #13
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