No Start After Accident

Discussion in 'Technical Help' started by Victor Loreno, Apr 6, 2021.

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  1. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    Nothing... it is cranking since accident happen. But not have fuel injected from injectors
    Is there anyway to chech dtc without tuneecu tool ?
     
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  2. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    Will do sir and update you. I am purchasing new batery as we speak
     
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  3. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    I havent check the pressure..
    How to do this ? Do we simply disconect the fuel line that goes to injectors ? And see if the fuel is there ?
     
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  4. Wishbone

    Wishbone First Class Member

    Nov 4, 2018
    848
    643
    Essex UK
    when you switch on ignition you should hear thethe pump run for about 2-3 seconds and then quieten down. the fuel line is under pressure so disconnect carefully and put end in a bottle or similar. But a fuel pressure check is best.
     
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  5. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    Yes that what i mean. Cos sometimes we hear sound but actually no fuel primming up to rail.
    Will update the result soon when battery is new
     
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  6. Wishbone

    Wishbone First Class Member

    Nov 4, 2018
    848
    643
    Essex UK
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  7. Wishbone

    Wishbone First Class Member

    Nov 4, 2018
    848
    643
    Essex UK
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  8. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
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  9. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
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  10. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    Update..
    Spark is present. In all cyls
    Fuel pump working
    12v on injector is not there
    Should it be 12v standby ?
    Help me with wiring diagram please if anyone have
    No dtc on the scanner
     
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  11. Wishbone

    Wishbone First Class Member

    Nov 4, 2018
    848
    643
    Essex UK
    I think the injectors use PWM Pulse width Modulation- so not a constant voltage.
     
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  12. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    I mean rhe 12volt.
    Not the pulse. Its saturated injectors. So it has to be driven by ground pulse send from ecu.
    The othe pins has to receive 12v constant. But tell me if i got it wrong
     
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  13. alfie

    alfie Getting older but still going for it
    Subscriber

    Jan 27, 2018
    343
    213
    Bath, Zumerset
    Injectors, 1 terminal 12v supply (either relay or ECM) 2nd terminal grounded by the ECM.

    Alfie
     
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  14. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    Yes thanks.. i will try to check relay first..
     
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  15. alfie

    alfie Getting older but still going for it
    Subscriber

    Jan 27, 2018
    343
    213
    Bath, Zumerset
    ECM will start to ground the injectors when it gets a signal from the Crank Position Sensor

    Alfie
     
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  16. Victor Loreno

    Victor Loreno New Member

    Apr 6, 2021
    2
    3
    Indonesia
    Yes sir i know that..
    But the othe pin on injector has to get 12v constant right ? I dont think mine have.
    But let me double check tomorrow.
     
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  17. alfie

    alfie Getting older but still going for it
    Subscriber

    Jan 27, 2018
    343
    213
    Bath, Zumerset
    You are correct, 12v ignition supply on one pin. The second pin will show a very small voltage but only when the engine is cranking,

    Alfie
     
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  18. London_Day_600

    Jul 7, 2019
    40
    18
    LONDON
    Have you checked fuel level in tank?
    If bike in accident, flat on ground, did the fuel leak out of overflow drain?
    If fuel level low in tank - may be too low for fuel pump intake.

    For bike which has not run for some time AND has had work done on it - I would try to start it with engine start spray direct into air intake on carb/throttle body. At same time you can also give them a good clean.
    Remember to use earplug as can be VERY loud! :dizzy:
     
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