Efi Throttle Body Synchronization

Discussion in 'Bonneville' started by Guillermo salinas, Oct 7, 2019.

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  1. Guillermo salinas

    Guillermo salinas Well-Known Member

    Aug 17, 2019
    161
    93
    Azusa
    How do I sync my throttle bodies? What tool do I need? What specific hardware should I buy for my 2014 triumph Bonneville t100?
     
  2. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
  3. Guillermo salinas

    Guillermo salinas Well-Known Member

    Aug 17, 2019
    161
    93
    Azusa
    My bike has fuel injectors so this won't work
     
  4. steve lovatt

    steve lovatt Something else

    May 12, 2014
    9,211
    1,000
    North Yorkshire
    A laptop, Tune ECU, a cable and away you go! :cool:
    20180207_142348.jpg 20180207_142341.jpg

    You can see them balanced in the second picture.
     
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  5. Eldon

    Eldon Elite Member

    Nov 14, 2018
    4,061
    800
    North Yorkshire
    • Useful Useful x 1
  6. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,358
    800
    Nr Biggar
    You can do it either way.......

    Yes, the EFI bikes have their own built-in vacuum gauges - the MAP sensors (Manifold Absolute Pressure) which adjust fueling by sending their vacuum signals directly to the ECU. This is what TuneECU reads

    However the adjustment itself is still mechanical at the throttle mechanism. You have a little spring-loaded screw between the throttle bodies - normally marked with a dab of yellow paint. With a diy manometer you can achieve just as good a result. ATF is viscous enough not to flutter as coloured water (juice?) does.
     
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  7. Rudeboy

    Rudeboy Senior Member

    May 2, 2017
    402
    113
    Bristol
    • Like Like x 1
  8. Guillermo salinas

    Guillermo salinas Well-Known Member

    Aug 17, 2019
    161
    93
    Azusa
    I have my throttle bodies synced at 350 and not 360, is that okay? Also all the other testing features that tune ECU fail everytime. What else can I do with these OBD2 controllers?

    Screenshot_20200307-175509_TuneECU.jpg
     
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    • Agree Agree x 1
  9. thebiglad

    thebiglad Old fart, still riding !

    Sep 25, 2013
    5,064
    1,000
    Central France
    Yes it'll be OK, the most important thing is that both cylinders are, as near as possible, identical.
     
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  10. Kinjane

    Kinjane Active Member

    Oct 15, 2017
    233
    43
    Bristol, Land of Enger
    Needs to be done with a hot engine. Mine are @ 330 :)
    It looks like you are using the Android App, to download a different map or use other functions you will need to use a USB cable.
    Link availble here, first post. tuneecu.boards.net/thread/12/bikes-list
     
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  11. SprinterII

    SprinterII Noble Member

    Mar 27, 2020
    642
    443
    Scotland
    There is a tune ecu forum now, it aint busy like here, instead you get the makers advice.
     
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  12. Kinjane

    Kinjane Active Member

    Oct 15, 2017
    233
    43
    Bristol, Land of Enger
    Just realised you probably can't access the forum, here's the relevant info...

    Bonneville 900 (Air Cooled) - USB & Bluetooth *
    * Remapping only through USB

    You'll need the older windows version (and drivers) for full functionality.
     
  13. Guillermo salinas

    Guillermo salinas Well-Known Member

    Aug 17, 2019
    161
    93
    Azusa
    I couldn't get my PC to work. I want to see all the other readings on the bike. Are there any other tools?
     
  14. Kinjane

    Kinjane Active Member

    Oct 15, 2017
    233
    43
    Bristol, Land of Enger
    Your screen shot shows the ADJUSTMENT screen.
    Can you not access the DASHBOARD screen by swiping right (and then right again for the fuel and ignition tables) ?

    An other option might be Dealer Tool - but that's also windows PC based or as suggested seek expert advice on the TuneECU forum.
     
  15. capt

    capt Elite Member

    May 8, 2016
    3,052
    750
    western Australia
    Yes it will ! And depending on the vacuum gauge quality and setup ... It will be more accurate than any electronic device.
    All fuel systems apart from turbocharged or supercharged , work by vacuum , they suck the air in and this is what needs to be measured by a huge to adjust throttle balance.
     
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