Hi Everyone, Need Help

Discussion in 'Technical Help' started by Radovan, May 25, 2019.

  1. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    Hi again,
    I am from Serbia and sorry if my english is not good.
    I have trouble with my Daytona 955i 2006y
    she does not get it pulse on injector.
    I check conection, wires, everything is fine
    constant + is present.
    but negative it is not.
    if somebody can help I'll be grateful.
    thanks Radovan
     
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  2. freck

    freck Elite Member

    May 4, 2017
    1,718
    750
    Preston, Lancs, UK
    Welcome Radovan, is it just one injector that isn’t getting a signal or all 3?
     
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  3. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    Hi freck,
    All 3 injector does not have signal,
    Permanent + (12V) present
     
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  4. freck

    freck Elite Member

    May 4, 2017
    1,718
    750
    Preston, Lancs, UK
    Not too sure on your bike but I think they’re all fed signals directly from the ECU. The +ve feed is from the main power relay and -ves switched.
    Have you got Tuneecu to connect to the ECU and read codes?
    Have you looked at the connection at the ECU, for bent or broken pins?
    Also check the Crank Position Sensor connection, r/h side coming out of the top of the side cover.
     
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  5. Tricky-Dicky

    Tricky-Dicky Crème de la Crème

    Dec 12, 2016
    2,441
    1,000
    Norfolk UK
    Injectors are usually fired by a pulse on the negative side so you will only see a signal when the engine is running, its normal to see the 12v+ side with ignition on, and you will normally need an oscilloscope unless you have some ECU software then you will be able to log injector pulse width etc.
     
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  6. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    I have broken wire on contact of mass on the housing, problem solved. :grinning:
    Does anyone know how much compression should be per cylinder? thanks
     
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  7. joe mc donald

    Subscriber

    Dec 26, 2014
    14,337
    1,000
    slough / burnham
    Radovan.
    Welcome to the family. Glad you are sorted. Do drop us a picture of the steed.
    Ride Safe & Enjoy
    Joe.
     
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  8. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    This is my baby :grinning: :heart:

    20150614_142534.jpg
     
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  9. joe mc donald

    Subscriber

    Dec 26, 2014
    14,337
    1,000
    slough / burnham
    Radovan.
    It's a real cracker. Don't you just love the sound of those engines.
    Regards
    Joe
     
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  10. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    Do you now something about comression?
     
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  11. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    Yes I do , I have aftermarket silencer Akrapovic and the sound is WOW . :heart_eyes:
     
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  12. Tricky-Dicky

    Tricky-Dicky Crème de la Crème

    Dec 12, 2016
    2,441
    1,000
    Norfolk UK
    In what context? are you talking ratio or are you talking compression test reading? if the latter it really depends on ratio and things like volume, but as an average most should come back at around 140-160psi if in good condition.
     
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  13. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    Yes I do , I have aftermarket silencer Akrapovic and the sound is WOW . :heart_eyes:
    Ok, thanks. Tomorrow I’ll check and see condition (odo 45000km)
     
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  14. stollydriver

    stollydriver Elite Member

    Apr 25, 2015
    2,054
    800
    north wales
    Welcome Radovan - trust me your English is very good, enjoy the bike and the forum
     
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  15. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    Compression checked
    I check compression

    B7C5A8C3-43C3-43A6-8E85-D797EC163D1D.jpeg
     
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  16. Tricky-Dicky

    Tricky-Dicky Crème de la Crème

    Dec 12, 2016
    2,441
    1,000
    Norfolk UK
    Looks good to me where all cylinders within 10% of each other?
     
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  17. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    Yes all 3 cylinder have such compression.
    I check ignition coil and it's ok
    spark plugin - ok
    injector now is ok
    timming perfect
    But it will still not start.
    Can anyone help? Thanks
     
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  18. Tricky-Dicky

    Tricky-Dicky Crème de la Crème

    Dec 12, 2016
    2,441
    1,000
    Norfolk UK
    Have you got an alarm/imobiliser fitted? have you checked the lock out switches etc, does the starter actually turn the engine.
     
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  19. Bad Billy

    Bad Billy Baddest Member

    Jun 1, 2017
    6,799
    1,000
    Southern Softyville
    Hi & Welcome to the Forum, nice bike, glad you found the problem with injectors :cool:
     
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  20. Radovan

    Radovan New Member

    May 25, 2019
    14
    3
    Serbia
    hi again
    the engine is on, but it does not work very well.
    Do you know these parameters?
    Thanks

    question 1.png
     
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