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  1. #1

    2002 Virage i 800 No Spark

    Just got my computer back from DFI Technologies. They said there was a problem with my it so they repaired it.

    Prior to sending the computer to them there was spark and the darn thing was starting just not turning over.

    Now, I put the computer back in and I'm not getting power to the coils. Any thoughts? I checked all wires, new battery installed and new spark plugs.

    Advice and suggestions are greatly welcomed!


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Lanyard in place?

    Fuel pressure above 20PSI while cranking?

    What do you mean by 'the darn thing was starting just not turning over'?

  3. #3
    Yes on the lanyard. Yes on the fuel pressure. Sorry I mean it was cranking but not turning over to start up. After I exhausted all options I figured it must be the computer so I sent it out to be looked at. They said they found a problem and fixed it but like I said, now it's not getting power to the coils. I was trying to shock myself to check for spark and nothing happened. I know that was a dumb move but I was so desperate for spark.

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    For clarity;

    Cranking = starter motor has engaged with engine and engine is rotating (with or without spark)

    Turning over = engine is rotating (with or without spark) but is not yet running

    Firing = engine is turning over with spark and is trying to start (actual ignition of fuel is happening)

    Running = engine is running

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    Recheck the EMM connector pins. Look for corrosion, bent pins, excess dielectric grease...

    Make sure the large 40-pin EMM connector is fully seated and the retaining bolt is reasonably tight. The EMM is in a really awkward spot so it can be difficult to ensure that big connector is properly seated.

    Check the two smaller EMM connectors.

    Make sure the diagnostic 'loop' connector pair are fully mated. There is a single White/Red wire on one connector of that loop and it must be connected.

    My suspicion is that the EMM is not even trying to start the engine. I suspect that not only is there no spark but also the fuel injector's are not firing.

    Beyond confining that all connectors are internally clean and tight, look at the more general possible causes.

    Check battery voltage while cranking.

    Check Voltage on White/Red wires while cranking. Should be over 20 volts.

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