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how? TVIS gen 2 3sgte

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TIPSIDUECE
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2012/09/19 18:52:27 (permalink)
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how? TVIS gen 2 3sgte

hey guys, how does the TVIS works?
from my understanding, the butterflies are open at idle then (rpm??tps??load??) triggers and energises the valve to open for vaccum then closes the butterflies. then at x rpm it deenergises the valve to close cut vaccum and opens the butterflies again.
 
if so then disconnecting the tvis electrical connector should keep the butterflies open at all times?? i will delete it in the future but i just wanna see the difference with it connected/disconnected for now. cheers

Why do people say "grow some balls"? Balls are weak and sensitive if you really wanna get tough, grow a vagina! Those things take a pounding!
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    purple5ive
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    Re:how? TVIS gen 2 3sgte 2012/09/19 20:26:46 (permalink)
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    if you disconnect the tvis the butterflies will be open all the time yes, so you loose a slight bottom end.
    if you go aftermarket ecu it gets disabled regardless, then its up to you to re-enable it via an RPM switch.

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    TIPSIDUECE
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    Re:how? TVIS gen 2 3sgte 2012/09/19 20:33:20 (permalink)
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    if the EMS was piggy backed would it still be disabled? so what triggers it when using stock ecu?

    Why do people say "grow some balls"? Balls are weak and sensitive if you really wanna get tough, grow a vagina! Those things take a pounding!
    #3

    Firthy
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    Re:how? TVIS gen 2 3sgte 2012/09/22 19:56:21 (permalink)
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    I thought it opens at about 4200 revs.. so perhaps that's the trigger for the ECU?

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    #4
    TIPSIDUECE
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    Re:how? TVIS gen 2 3sgte 2012/09/22 22:50:09 (permalink)
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    yeah i agree, i was wondering tho what triggers it to close the butterflies from being open at idle tps? load maybe?

    Why do people say "grow some balls"? Balls are weak and sensitive if you really wanna get tough, grow a vagina! Those things take a pounding!
    #5
    Reddtarga
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    Re:how? TVIS gen 2 3sgte 2012/09/23 09:20:04 (permalink)
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    Basic description:
    http://en.wikipedia.org/wiki/T-VIS
    What happens if you disable it:
    http://websworld.org/marcel/tech/tvis/tvis.html

    1990 ADM NA
     
     
     
     
     
     
    #6

    TIPSIDUECE
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    Re:how? TVIS gen 2 3sgte 2012/09/23 14:31:02 (permalink)
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    thanks for the links mate! very helpfull
     

    Why do people say "grow some balls"? Balls are weak and sensitive if you really wanna get tough, grow a vagina! Those things take a pounding!
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