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

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

  1. LEE69

    LEE69 Stage 2 Revo'd

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    Of course it will :)
     
  2. Damoegan

    Damoegan Sir Bob,a geordy legend..

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    :yes:
     
  3. Adam87

    Adam87 Guest

    I tried this on my '01 Leon 1.8 20v non turbo last night and each box said "NA". Have I done something wrong or can the TB not be reset on this engine?

    Cheers
     
  4. LEE69

    LEE69 Stage 2 Revo'd

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    Have you got full vag com?
     
  5. Adam87

    Adam87 Guest

    Yeah, got the full version, although it is an older version, unregistered version wouldn't even let me access the basic settings menu.
     
  6. LEE69

    LEE69 Stage 2 Revo'd

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    Think you can update from ross tech to the latest for free?
     
  7. Adam87

    Adam87 Guest

    Umm, well it's a friend's vag-com and it's not really an official version so may not be possible...
     
  8. bcstudent

    bcstudent Boost FTW

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    Thank God for the Internet and all the fine people that use it...

    I'd noticed that my Leon had started to run progressively worse in traffic over about the last year. The throttle response became jerky and the exhaust note was much harsher. It was really only at small throttle openings though and seemed just fine at all other times, although the fuel economy even on a run appeared to be worsening. I just assumed it was due a service and lived with it. I only do about 3k miles a year so it was easy to forget about.

    Today I read this thread (that's been staring me in the face every time I've come here) and thought I'd try the VAG-COM reset. Two minutes later and it's like a different car. The idle is smoother, gentle acceleration is jerk-free and it averaged 5mpg more than recent trips over the usual 30-mile route to visit my parents.

    Thank you thank you thank you.
     
  9. joehirth

    joehirth Rate me up baby

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    I work with the guy who did that guide - can find out lots of info from him if needs be - let me know people if you need questions answered :)

    Joe
     
  10. robertbadlad

    robertbadlad Full Member

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    do you need full vag com??????
     
  11. seatcupramad23

    seatcupramad23 kc4even23

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    Interesting read , I've just clean my throttle body using carb cleaner from halfords last week, was told by seat mechanic to switch ignition for 5 minutes n then switch it off for a minute den start it again , to b honest I'm not sure way effect this as cause the car felt fine b4 n fine after, if u were to clean it n not align the TB wat will happen to the car is wat I'm worried about ?
     
  12. leon cupra r

    leon cupra r Back in an LCR!

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    Before I had vagcom I cleaned my TB without aligning it and there were no adverse effects. As long as you dont do anything stupid like try to force the flap open you should be OK
     
  13. seatcupramad23

    seatcupramad23 kc4even23

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    Ageed !!! I do same thing once a year n cars feels right as rain , at least I tink dat is sayin
     
  14. nd-photo.nl

    nd-photo.nl Active Member

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    Just did a reset, will drive tomorrow and wait for the results. Thanks a lot for this tip!
     
  15. nd-photo.nl

    nd-photo.nl Active Member

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    Awesome, my 1.8T 20VT drives like new again :)
     
  16. JW.CupraT

    JW.CupraT Active Member

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    I just reset mine via Vag com after I cleaned it, mine drops to 14% on Throttle sen 1, is that correct? doesn't seem to go any lower when the ADP is complete.
     
  17. LEE69

    LEE69 Stage 2 Revo'd

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  18. jaybeee

    jaybeee [e]

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    I first reset mine back in June 2010 (as you from my comment of thanks on page 4).

    The car has been very lumpy the last month and I just completely forgot about this procedure lol

    But this time I cleaned the throttle body too, and then reset it.

    So far so good :)
     
  19. LEE69

    LEE69 Stage 2 Revo'd

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    Yeah dirt gets to it and it can't sit properly.
     
  20. Lozzy15

    Lozzy15 Mods mods mods

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    I've done this today via vcds and the car runs worse than before. It almost stalls on idle, the throttle sometimes doesn't respond, and when it does it responds too much i.e slight pressure on the pedall = 4k revs. Any ideas?
     

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