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Thread: idle issue 4age

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    Senior Member VTAZ!'s Avatar
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    Default idle issue 4age


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    hello all i just finshed my 4age convertion im having issues my 4age idle she perfect on cold start up about 1k to 900rpm and then she warms up the bitch idles at like 1500-1700 someone have some idea what might be the issue

    thanks VTAZ!

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    Senior Member Futo_gt86's Avatar
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    Have you hooked up or blanked off the water lines to the bottom of the throttle body?

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    Moderator dove grey 64's Avatar
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    Where is your idle screw set to. Also adjust your throttle stop screw

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    Quote Originally Posted by Futo_gt86 View Post
    Have you hooked up or blanked off the water lines to the bottom of the throttle body?
    ^This.

    I had to remove the cold-start/idle-up valve thingy on the bottom of my throttle body recently. This is all I did to fix it (sorry AE86DC won't let me attach the images so I've just linked them from RC):

    Removed this from the throttle body:
    http://www.rollaclub.com/board/index...tach_id=100832

    Made this blanking plate(on the right):
    http://www.rollaclub.com/board/index...tach_id=100833

    Then fitted the plate and a new gasket to the bottom of the throttle body:
    http://www.rollaclub.com/board/uploa...5080_thumb.jpg

    No more idle problems

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    Senior Member VTAZ!'s Avatar
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    the idle screw is screwed all the way in

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    Senior Member VTAZ!'s Avatar
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    i bought a new one of them and i still have the same issue see she idles low on cold but hot high i just dont get it this valve should work technically

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    Senior Member Futo_gt86's Avatar
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    So you have the bottom of the TB blocked off?
    Or you have all water lines hooked up?

    And you have adjusted idle screws? as in you got the throttle body stop, and you got the adjustment screw, its the recessed screw in the throttle body beside the TPS.

    Quote Originally Posted by VTAZ! View Post
    i bought a new one of them and i still have the same issue see she idles low on cold but hot high i just dont get it this valve should work technically
    Inside the TB on the bottom right is a hole.
    This is hole for your ISCV (idle speed control valve) ^ is this the part you refering to that you have purchased new

    Read this
    http://www.driftworks.com/forum/tech...e-problem.html

    You have checked for vacuum leaks around intake and TVIS?

    Do you have a oil catch can hooked up by chance
    Last edited by Futo_gt86; 26th March 2013 at 08:44 PM.

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