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    Thread: How-To: Throttle Body Alignment

    1. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      01-26-2004 12:56 PM #1
      This procedure details how to perform a Throttle Body Alignment (TBA) on many VW/Audi vehicles. This procedure cycles the motorized throttle body through various states (idle, part throttle, WOT) to relearn their positions. Some examples of reasons to perform a TBA:
      The vehicle's battery has been disconnected and re-connected
      The ECU has been removed and reinstalled
      The Throttle Body has been cleaned or removed and reinstalled
      The Accelerator Pedal has been removed and reinstalled
      In some vehicles, the car will not run correctly, or may not run at all without performing a TBA after one of the above operations. The TBA can be performed on both Drive-By-Wire (DBW or E-gas) as well as Cable-throttle cars as long as there is no Idle Stabilization Valve (ISV). If there is an ISV, then there is no motorized control of the throttle at all. Typically, '96-'99 VW/Audi have motorized Cable-throttle, and '00+ VW/Audi have DBW. Obviously, there are some exceptions.
      There are certain test conditions that must be met before doing a TBA:
      No DTC's in the Engine Controller
      Battery voltage at least 11.5 V
      Throttle must be at idling position (keep your foot off the gas pedal)
      Throttle body part must not be dirty (carbonized).
      Coolant temperature must be between 5 and 95C
      --------------------------------------------------------------------------------
      Procedure for performing a Throttle Body Alignment on Cable-Throttle Cars:
      These are cars with a physical cable between the accelerator and the throttle, but WITHOUT an ISV. Some examples of such cars would be '97-99 Audi A4/VW Passat 1.8T.
      Turn the key on but do not start the car.
      [Select]
      [01 - Engine]
      [Measuring Blocks - 08]
      Group 098
      [Go!]
      [Switch to basic settings]
      Once you do this you will see the top right display say ADP RUN. The TB adaptation is being done as soon as you switch to basic settings. You will see the values change and hear the TB cycle for the first few seconds then it will stop. Leave it in Basic Settings for about 30 seconds.
      Click the [Switch to Meas. Blocks] button and you're all set.
      Be sure not to touch the accelerator and make sure the engine is NOT running when you do this!
      --------------------------------------------------------------------------------
      Procedure for performing a Throttle Body Alignment on DBW Cars using KWP-1281:
      (Check to see if the engine speaks KWP-1281 by looking in the top left of the Open Controller Screen. Some examples of KWP-1281 engine controllers are 2000-2004 Golf/GTI/Jetta/New Beetle/Audit TT 1.8T)
      Turn the key on but do not start the car.
      [Select]
      [01 - Engine]
      [Measuring Blocks - 08]
      Group 060
      [Go!]
      [Switch to basic settings]
      Once you do this you will see the top right display say ADP RUN. The TB adaptation is being done as soon as you switch to basic settings. You will see the values change and hear the TB cycle for the first few seconds then it will stop. Leave it in Basic Settings for about 30 seconds.
      Click the [Switch to Meas. Blocks] button and you're all set.
      Be sure not to touch the accelerator and make sure the engine is NOT running when you do this!
      --------------------------------------------------------------------------------
      Procedure for performing a Throttle Body Alignment on DBW Cars using KWP-2000:
      (Check to see if the engine speaks KWP- 2000 by looking in the top left of the Open Controller Screen Some examples of KWP-2000 engine controllers are 2002+ Audi A4, 2002+ VW Passat, and Touareg)
      Turn the key on but do not start the car.
      [Select]
      [01 - Engine]
      [Basic Settings - 04]
      Group 060
      [Go!]
      It should say "Basic Settings: OFF" on the top of your screen.
      Click [ON/OFF/Next] to turn on Basic Settings.
      It should now say "Basic Settings: ON" on the top of your screen.
      Once you do this you will see the top right display say ADP RUN. The TB adaptation is being done as soon as you switched basic settings on. You will see the values change and hear the TB cycle for the first few seconds then it will stop. Leave it in Basic Settings for about 30 seconds.
      Click [ON/OFF/Next] to turn off Basic Settings.
      It should now say "Basic Settings: OFF" on the top of your screen
      Click the [Done, Go Back] button and you're all set.
      Be sure not to touch the accelerator and make sure the engine is NOT running when you do this!

    2. 02-03-2004 01:26 AM #2
      So this would NOT be a general maintenance item to regularly perform all by itself, but it would be good to do immediately after any of the above maintenance, since you mention not to do it with a throttle body containing a bit of carbon build up. Right?

    3. 02-03-2004 02:37 AM #3
      Seems best to do anytime you do significant work on intake or fuel injection system(s), regardless of whether or not you have a sparkling throttle body.

    4. 04-09-2004 06:12 PM #4
      I'm trying to do a TBA on my VR6, but I couldn't get into block 8. It shows nothing.

    5. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      04-09-2004 09:25 PM #5
      Re-read the instructions.

    6. Member izzo's Avatar
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      05-03-2005 10:38 PM #6
      How do I know which procedure applies to my car-
      '94 Passat GLX VR6 12v OBD1 with a manual tranny...?

    7. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      05-04-2005 09:33 AM #7
      Does your car have an ISV (Idle Stabilization Valve)? If so, then no TBA is possible.
      Also, here is a more recent writeup:
      http://www.ross-tech.com/vag-c....html
      And here's a great post by Daemon42, which debunks the "Chicken Dance" once and for all!
      http://forums.vwvortex.com/zerothread?id=1758619

    8. Member Theresias's Avatar
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      05-05-2005 04:38 AM #8
      Small hint, there are some older engines, where the 060/098 does not apply, mostly stuff that was build within 1990-1997.
      There is no specific rule for those ones, but they usually use 000 or 001 for the TBA, if it seems that 060/098 does not work, post a specific engine code or ECU part number and we could tell you the correct group for the TBA.

    9. 05-12-2005 05:20 AM #9
      Hi,
      I've got Golf III 1.8'93 (with ABS engine). Could you tell me the right group for this one? Is it necessery to enter login before?
      Best regards,
      Greg

    10. Member Theresias's Avatar
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      05-12-2005 07:10 AM #10
      No chance to do a TBA on an ABS engine.

    11. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      10-09-2006 12:06 PM #11
      Here's a thread with a great video comparison between doing a TBA using VAG-COM compared to doing the "chicken dance":
      http://forums.vwvortex.com/zer...73413

    12. Member elio's Avatar
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      08-19-2007 07:51 PM #12
      Quote, originally posted by Andy@Ross-Tech.com »
      Here's a thread with a great video comparison between doing a TBA using VAG-COM compared to doing the "chicken dance":
      http://forums.vwvortex.com/zer...73413

      Hi Andy I have a big doubt. I want to do a TBA procedure but my car have a drive-by-cable throttle body but uses KWP-1281, which TBA procedure do I need to do?
      Thanks in advance for your help.
      Regards,
      ---------------------------------
      Making my dreams a reality
      ElioT

    13. Member elio's Avatar
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      08-19-2007 08:31 PM #13
      Oh Andy and another question, what means that a code is intermittent? I have no MIL or check engine lights now, but I will like to know.
      Thanks again,
      ---------------------------------
      Making my dreams a reality
      ElioT

    14. Member EuroGruppe's Avatar
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      09-05-2007 08:34 PM #14
      sick, this helped me out a ton!!
      Previously WOB 16V - Join Date 04-12-2003

      FS: 08 bagged .:R32
      http://forums.vwvortex.com/showthrea...-NJ&p=77481216

    15. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      09-06-2007 09:05 AM #15
      Quote, originally posted by elio »
      Hi Andy I have a big doubt. I want to do a TBA procedure but my car have a drive-by-cable throttle body but uses KWP-1281, which TBA procedure do I need to do?
      Thanks in advance for your help.
      Regards,

      Cable throttle is cable throttle. There is only one instruction on that page for cable throttle, use it.
      As for intermittent, that means that the fault condition was present at some point in the past, but was not present when the ECU was actually scanned.

    16. 10-17-2007 10:29 PM #16
      how do you do it on a 2000 vw jetta cable throttle with out that on board screen with a aeg 8v motor???

    17. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      10-18-2007 09:02 AM #17
      Quote, originally posted by ghettojay »
      how do you do it on a 2000 vw jetta cable throttle with out that on board screen with a aeg 8v motor???

      Quote, originally posted by Andy@Ross-Tech.com »
      --------------------------------------------------------------------------------
      Procedure for performing a Throttle Body Alignment on Cable-Throttle Cars:
      These are cars with a physical cable between the accelerator and the throttle, but WITHOUT an ISV. Some examples of such cars would be '97-99 Audi A4/VW Passat 1.8T.
      Turn the key on but do not start the car.
      [Select]
      [01 - Engine]
      [Measuring Blocks - 08]
      Group 098
      [Go!]
      [Switch to basic settings]
      Once you do this you will see the top right display say ADP RUN. The TB adaptation is being done as soon as you switch to basic settings. You will see the values change and hear the TB cycle for the first few seconds then it will stop. Leave it in Basic Settings for about 30 seconds.
      Click the [Switch to Meas. Blocks] button and you're all set.
      Be sure not to touch the accelerator and make sure the engine is NOT running when you do this!
      --------------------------------------------------------------------------------

    18. 11-23-2007 04:48 PM #18
      just thought I'd check before I did this, I had the Inj unit cleaned and the throttle valve positioner (V60) with idling switch replaced on my 1995 Golf 1.8i Driver ADZ, would I be right in thinking I would use the 1st method and go with group 00 or 01?

    19. Forum Sponsor Andy@Ross-Tech.com's Avatar
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      11-26-2007 09:43 AM #19
      Please post a complete AutoScan. Does this car use an Idle Stabilization Valve (ISV)?

    20. 11-26-2007 07:54 PM #20
      will do another scan on Thursday and post it up, car is Cable-Throttle and does not have an ISV. tried to do the throttle body alignment the other day but Group 098 and 060 do not exist, just seems to be group 000 and 001 nether of which had the ADP RUN bit. Car might be too old?
      thanks or the reply



      Modified by dollso at 4:59 PM 11-26-2007

    21. 06-30-2009 12:26 AM #21
      i have a 2000 vr6 gti i disconected the batt. when i put it back the car starts but kill after a second, i check every single fuse n all is fine try a snap on modis n it could not communicate with the ecu but i know no power wires where cross or anything but to disconect n reconect battery could this b a tba problem what tool do i need to by to correct it n can i get that from u since i see various in ebay but much rather buy it from someone that is a vw expert pls let me know how to fix it n if i can buy the tool from u my email is javioyu@hotmail.com if u thinks i have another problems pls let me know

    22. 07-01-2009 09:26 PM #22
      i was hoping to hear from somebody but here is my update still not repair my snaop on modis cannot conect to it it just gives me a no conection probrem some friends from a vw dealer told me to to a procedure with the gas pedal to realing the tb but no luck the thing that worries me the most is why i have no comunication with the snap on but pls if anyone has encounter this problem n found a solucion let me know many thanks

    23. Semi-n00b
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      10-14-2010 12:49 AM #23
      I got a 99 mk4 2.0 aeg motor code. Will I need a tba?
      Mk4 2.0slow

    24. Member hares1370's Avatar
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      10-19-2010 02:34 PM #24
      I tryed to adapt my odb2 vr6 throttle body but i stay getting error. There was a fault code in mine for vehicle speed sensor but i cleared it and replaced the sensor. The vag com said my car is meeting the requirements but i keep getting an error. The throttle body does move when i turn the key, and the car runs good but it idles funny. Seems like the throttle body doesn't know where to set idle.

    25. Forum Sponsor Dana @ Ross-Tech's Avatar
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      10-19-2010 05:57 PM #25
      Quote Originally Posted by Vandy99 View Post
      I got a 99 mk4 2.0 aeg motor code. Will I need a tba?
      Yes, that is a DBC engine so you would use the 098 procedure: Throttle Body Alignment (TBA)

      Quote Originally Posted by hares1370 View Post
      I tryed to adapt my odb2 vr6 throttle body but i stay getting error. There was a fault code in mine for vehicle speed sensor but i cleared it and replaced the sensor. The vag com said my car is meeting the requirements but i keep getting an error. The throttle body does move when i turn the key, and the car runs good but it idles funny. Seems like the throttle body doesn't know where to set idle.
      If 098 says Error, or Not Available you should have a fault code and the TB is not able to be calibrated. This can happen for several reasons, including the T cable is over adjusted, vehicle voltage is too low, the TB is dirty or faulty, the Ecm is faulty or the wiring is damaged.

      Please post the Auto-Scan from this vehicle.

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