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  1. #1

    Question 2004 MSX 140 Error Code 18

    I've been having issues with my 04 MSX 140. I had good luck with it for years, but now it dies after about ten minutes. I took it in and the only error code is a #18 Alternator voltage above expected range. Anyone know of the best possible way to correct this without getting a new EMM for the ski...not real sure its worth the money to get a new one

    Thanks


  2. #2

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    you could try a single wire polaris reguluator from a sled.tap into the yellow wire from the stator and put a good ground to the regulator frame.check battery voltage while running

  3. #3
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by rr44red View Post
    you could try a single wire polaris reguluator from a sled.tap into the yellow wire from the stator and put a good ground to the regulator frame.check battery voltage while running
    The trouble code is complaining about the 45 volt injector voltage, not the 12 volt battery charging voltage.

    The EMM contains the rectifier and voltage regulator for both the 45 volt and the 12 volt systems.

    Check that all the connections in the 45 volt system are clean and tight. Look for corrosion or other problems inside each connector. These all have White/Red wires. Don't forget the coke can sized capacitor connections.

    Do NOT use any voltage regulator module from any carburetor engine (snowmobile or watercraft) on a Ficht fuel injected engine.

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