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  1. #1

    2002 polaris 1200 txi turns over, wont start

    was running ok a couple weeks ago... (had a little sputter, but otherwise ok)

    took it for about an hour ride

    at the end of the ride max speed dropped to about 40mph.... limped it back to the dock and it hasnt started since.

    I thought i found it and fixed it when i found no fuel pressure and fixed the pressure regulator problem (back to spec now)

    still wont start. got fire. got plenty of voltage, got fuel pressure, mfd functions properly, Im stumped


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Does the engine sputter and 'try' to start, or does it just crank with no signs of ignition?

  3. #3
    no signs of ignition at all

  4. #4
    also noticed during troubleshooting that my emm "pulses" the ground signal through the brown wire (pump doesnt run constantly, pulses about every .5 seconds or so) . Is that normal?

  5. #5
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by suicidedoors69 View Post
    also noticed during troubleshooting that my emm "pulses" the ground signal through the brown wire (pump doesnt run constantly, pulses about every .5 seconds or so) . Is that normal?
    Sounds like the EMM is internally rebooting, unstable electronics. My guess is the EMM needs repair.

    How did you determine the ground wire was pulsing?

  6. #6
    i was afraid of emm problems.... i figured that out with a test light... (clip on positive, test brown wire while cranking)... gives a steady pulse to the light... Is that an ok test?

  7. #7
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by suicidedoors69 View Post
    i was afraid of emm problems.... i figured that out with a test light... (clip on positive, test brown wire while cranking)... gives a steady pulse to the light... Is that an ok test?
    Sounds entirely reasonable. As long as the test light was a modest power draw.

  8. #8
    So what would you suggest? Is there anything that I can test that would cause the emm to reboot like that?

    not excited about replacing the emm and injectors (have to do both right?)

  9. #9
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by suicidedoors69 View Post
    So what would you suggest? Is there anything that I can test that would cause the emm to reboot like that?

    not excited about replacing the emm and injectors (have to do both right?)
    EMM can be repaired.

    DFI Technologies, contact info via my signature links.

  10. #10
    Twin TXI's's Avatar
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    I have the same problem but I have had my EMM rebuilt from DFI 2 months ago. Should I send it back?

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