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Why you should use vag-com to re-set the Throttle body

Discussion in 'Mk1 Leon Guides (1M) 2000-2006' started by LEE69, Sep 18, 2009.

  1. LEE69

    LEE69 Stage 2 Revo'd

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    This is what happens when aligned with a vag tool like vag-com

    http://www.youtube.com/watch?v=DsI8tKgfmFs



    This is what happens when you leave the key in the ignition

    http://www.youtube.com/watch?v=xB5DIuuEC_8



    The top video actually does an alignment, and the figures change for the vag-com screen like below:

    http://www.youtube.com/watch?v=HMU_riJ00zo

    as can be seen, the start figures are different to the end figures, because the throttle body is actually being measure while being aligned.

    Taken from http://uk-mkivs.net/forums/AddPost.aspx?ReplyToPostID=1900058&Quote=True

    Select Control Module

    [​IMG]


    Select "01" Engine

    [​IMG]


    Select "04" Basic Settings

    [​IMG]


    In the first group box type "060" and hit GO!

    [​IMG]


    You should see the display below and watch the "Step count" step through until it reaches 8.

    [​IMG]
     
    #1 LEE69, Sep 18, 2009
    Last edited: Sep 29, 2009
    Grayboy and adon30 like this.
  2. Jimski

    Jimski Back to the fold!

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    I always get noticeable results from a vag com reset, mainly MPG.

    Well worth doing now and then.


    Jimski
     
  3. DPJ

    DPJ ...........

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    So just to reinforce the point,

    YOU CAN'T DO A THROTTLE BODY ALIGNMENT WITHOUT USING VAGCOM.


    ;)
     
  4. LEE69

    LEE69 Stage 2 Revo'd

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    Was a post of yours i recall Dave, so went and found the vids.
     
  5. Seat Gooner

    Seat Gooner A.K.A Mark

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    hmm good job i got vag-com :D just brought a gasket to do this soon to :D
     
  6. Mr Roboto

    Mr Roboto Domo Arigato

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    I heard that the throttle body resets itself after a few miles any way is that true?
     
  7. Jimski

    Jimski Back to the fold!

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    IIRC its not a reset, more of an adjustment, to obviously "re-look" at your driving style, fuel type, temperature etc.


    Jimski
     
  8. adam cupra 20vt

    adam cupra 20vt Built Not Bought.

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    I'm glad this has been posted as I asked last couple of weeks and some people seem to think you can do it without....very helpfull post.

    Perhaps this could be a sticky?
     
  9. dizzydiesel

    dizzydiesel Guest

    At the risk of sounding like a total idiot.....can you realign throttle body on a TDI using vag-com?
     
  10. Willie

    Willie LCR Track car

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    Do you have a throttle body on your car?
     
  11. Muttley

    Muttley Catch that diesel!

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    dizzydiesel wrote

    At the risk of sounding like a total idiot.....

    You have succeeded . . .

    can you realign throttle body on a TDI using vag-com?

    Diesels
    Have
    NO
    THROTTLE
    !




    In case you're still wondering, that means no.
     
  12. dizzydiesel

    dizzydiesel Guest

    Ok, the Ross-tech makes sence then.
    I wasnt sure if TDI had a throttle body......probably getting confused with the EGR and manifold.

    I hold my hand up - idiot. :doh:
     
  13. DJ-LIAMC

    DJ-LIAMC VAGisclean

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    Ok so your not supposed to do a TBA with the key in the ingnition?
     
  14. adam cupra 20vt

    adam cupra 20vt Built Not Bought.

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    From reading the bottom link in the first post it seems sometimes the ECU does it itself?

    http://www.waheedkhan.com/vagcom/vagcomthrottlebodyadapt.htm

    "Throttle body adaptation is a reset of the throttle body flap to align it to the accelerator pedal as the TT is Drive-by-wire.

    Its recommended to be done at a service and then always if the battery were to be disconnected, there are 2 ways to do it.
    1. Switch on the ignition and leave it on for 30 seconds.
    (You should hear some clicking in the engine bay, always after a battery disconnect)
    This is not guaranteed to happen as the ecu decides if it needs doing,
    if you disconnect/reconnect the battery first then this method will definitely work.

    or

    2.Use VAG-COM procedure as described below"


    I wonder how the ECU decides if its going to do it or not? also it says "if you disconnect/reconnect the battery first then this method will definitely work."

    Any thoughts on this or am I missunderstanding?
     
  15. DPJ

    DPJ ...........

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    No, No, No, No.......:headhurt:
     
  16. adam cupra 20vt

    adam cupra 20vt Built Not Bought.

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    I guess thats wong advice in the link then? :confused:
     
  17. DPJ

    DPJ ...........

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  18. adam cupra 20vt

    adam cupra 20vt Built Not Bought.

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    Ahh rite guess I've been misunderstanding then :)
     
  19. DPJ

    DPJ ...........

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    That's the misinformation we (and this thread) are trying to dispel.....
     
  20. LEE69

    LEE69 Stage 2 Revo'd

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    Edited the first post to save the confusion :)
     

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