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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

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      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.

    26. Member hares1370's Avatar
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      10-19-2010 06:23 PM #26
      ok ill try and remove the cable then try to adapt it. i remember having to adjust it because it idled high

    27. Member hares1370's Avatar
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      10-23-2010 04:26 PM #27
      Quote Originally Posted by Dana @ Ross-Tech View Post
      Yes, that is a DBC engine so you would use the 098 procedure: Throttle Body Alignment (TBA)



      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.
      Friday,22,October,2010,17:04:09:49189
      VCDS Version: Release 10.6.1 (x64)
      Data version: 20100831



      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------


      Chassis Type: 1H - VW Golf/Vento III
      Scan: 01 02 03 08 12 15 25 41 56

      -------------------------------------------------------------------------------
      Address 01: Engine Labels: 021-906-259.lbl
      Part No: 021 906 259 K
      Component: MOTRONIC M5.9 HS V04
      Coding: 00000
      Shop #: WSC 00066
      VCID: 1D2CCF98BDC3

      5 Faults Found:
      16509 - Coolant Temperature Too Low for Closed Loop Fuel Control
      P0125 - 35-10 - - - Intermittent
      16885 - Vehicle Speed Sensor: Implausible Signal
      P0501 - 35-00 - -
      16684 - Random/Multiple Cylinder Misfire Detected
      P0300 - 35-10 - - - Intermittent
      16689 - Cylinder 5: Misfire Detected
      P0305 - 35-10 - - - Intermittent
      16686 - Cylinder 2: Misfire Detected
      P0302 - 35-10 - - - Intermittent
      Readiness: 0000 0100

      -------------------------------------------------------------------------------
      Address 15: Airbags Labels: 6N0-909-60x-VW2.lbl
      Part No: 6N0 909 603 D
      Component: AIRBAG VW2 V00
      Coding: 00068
      Shop #: WSC 00066
      VCID: 337809202B47

      2 Faults Found:
      00588 - Airbag Igniter; Driver Side (N95)
      32-10 - Resistance too High - Intermittent
      00532 - Supply Voltage B+
      07-10 - Signal too Low - Intermittent

      End ---------------------------------------------------------------------

    28. 01-16-2011 02:06 PM #28
      Hey everyone,

      Total noob question but found this thread after an uber search.

      Have a wee 1997 Audi a3 1.6 petrol that is now idling at 2000 rpm after I cleaned the throttle body with carb cleaner. I don't see an iacv on this model.

      Would the above process have to be carried out after such a simple clean and is this high idle a likely symptom?

      Thanks
      Andy

    29. Forum Sponsor Dana @ Ross-Tech's Avatar
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      01-16-2011 05:14 PM #29
      That depends on the use of the mentioned Idle Stabilization Valve (ISV) -or- Throttle Body that's controlled by the Ecm. We didn't get the A3 until the newer 8P body and the 1.6 wasn't available in the US on the other (similar) models.

      Can you post the engine code?
      Dana Marie

      P.S. No Scan = No Soup

    30. 01-17-2011 03:55 AM #30
      Hi Dana,

      I will indeed when I get it, had to call it a day yesterday so they are driving the car with the higher idle for now.

      I had a good look for an ISV and couldnt see one on the TB housing, just the wire controlled butterfly part and a big plastic housing on the opposite side.

      When i was playing with the throttle and looking at the tb to see what was going on, i could feel it being pulled/clicked or moved by something, thats what led me here.

      Looking at wikipedia, its the following but ill get the exact code tonight.

      1.6 8v
      1,595 cc (97 cu in)
      AEH/AKL/APF
      101 PS (74 kW; 100 hp) @5600 rpm
      145 N·m (107 lb·ft) @3800 rpm
      1996–2000

      Thanks
      Andy

    31. 01-17-2011 06:29 PM #31
      Hey,

      Ok, tried to connect it to VAG-COM tonight but it wouldnt connect at all. I just wanted to even check for error codes for a start.

      The car is an 8L Audi A3, still dont know the engine code.

      I also took a few pictures to see if it helps to identify the engine but i see we cant upload them here, not too sure where to find the engine code as it isnt on the vehicle document.

      Where would i find the engine code of the car?

      ANy thoughts on not being able to connect?


      Regards
      Andy

    32. 01-17-2011 06:54 PM #32
      Okey dokey.

      Engine code is AEH010284

    33. Forum Sponsor Dana @ Ross-Tech's Avatar
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      01-17-2011 08:06 PM #33
      Hi,

      As per the repair manual this Ecm (Simos vendor) supports the TBA in group 098 as shown on the Wiki page for DBC engines.

      Cable-Throttle Engines

      What are the details about the VCDS system you're using? The Interface model (i.e. KEY-USB), VCDS software version and PC details would be helpful.

      Do any other installed control modules communicate with VCDS as listed here: Audi A3/S3 (8L) ?
      Dana Marie

      P.S. No Scan = No Soup

    34. 01-18-2011 03:35 AM #34
      Hey Dana,

      Ok, so in theory this wee car should work.

      Its the basic connection thats not working, it just wont connect at all. Any time i try, the wee window in the top left babbles about baud rates etc etc.

      Not sure about versions Dana, its a skanky looking connector tbh.....in fact the USB connector is rusty

      Most certainly does not look like the £200 ones on your site, its transparent blue etc.

      Regarding the software, I think its 4.09.

      Its OOOOOOOOOOOLD but surely should do the job.

      Thanks
      A

    35. n00b
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      02-04-2011 08:46 PM #35
      I have a 2000 VW Jetta, 2.0 NON TD. I was just getting ready to spend the money to replace the throttle body but then I came across this forum. How do I know which adjustment to use and how do i do it?

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