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Thread: Checking Low impendence injectors

  1. #1
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    Is there safe/fairly basic way of testing some low impendence injectors (4agze ones) 3.5ohms.


    The 4age manul i assume is for hi impend ones.

    J.

  2. #2
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    dunno if this helps??

    if you have a part number u can check it


  3. #3
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    yeah saw that awile ago, not really usefull as i had then flow tested and cleaned. But just need to see if i burnt them

  4. #4

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    Checking their impedance? If so then just use a multimeter across the pins.

    Or do you mean check their flow? In this case you might be able to rig up a test setup from an old fuel pump, hose and hose clamps. I'd recommend running metho or water through them though so you don't blow yourself up.

    Hen

  5. #5
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    need to do that aswell as give it a signal, as i dont know which is not working the injector or the ecu

  6. #6

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    For a signal, you can just run the injector straight off 3-4V, or throw a fat 9ish ohm resistor in series with it and run it off 12V. Either way you should get 1A flowing through it, which should be enough to open it but not cook it.

    Hen

    Or alternatively you can whack a resistor and LED (in series) across the pins in the injector plug and see if the ECU is pulsing the injector.

  7. #7
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    hmmm, im getting a pulse, measued that. Its just that its pulling almost no current, might be around 0.1A. So i have a bad feeling about the injectors which is making me sick.

    Im getting a little pissed becuse couple of days ago i was getting a very fuely smell (coudlnt miss it) out of the spark plugs holes. Now nothing. Its going in a cycle like this 2 times now >.< which is leading me to ECU, im waiting for replies of of the megasquirt forum

  8. #8

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    Sounds like some prodding with a CRO would be useful.

    If you weren't in Brisbane I'd offer to help.

    Good luck

  9. #9
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    mmm ive always wanted a scope.... but trying some stuff the MS guys told me.

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