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2002 197 Tach

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  • 2002 197 Tach

    My tach has gone crazy! It's all over the place. Readying crazy high when I'm running 20 mph? Any ideas?
    2002 Blue Prostar 197, 0 Flex Tower, Perfect Pass, and The Preditor-ADHD Skier

    I'm pursuing my lifelong quest for the perfect, the absolutely driest martini to be found in this or any other world. And I think I may have hit upon the perfect formula :

  • #2
    Originally posted by tex View Post
    My tach has gone crazy! It's all over the place. Readying crazy high when I'm running 20 mph? Any ideas?
    Your tach should be connected to the ignition coil. Check all the connections and make sure they are clean and making good contact. Try disconnecting the negative and reconnecting it. It may just be a bad gauge
    The sea, once it casts it's spell, holds one in it's net of wonder forever - Jacques Cousteau

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    • #3
      I assume your 2002 utilizes the MMDC module for controlling the digital gauges. There are several threads on diagnosing/trying to repair errant gauges.

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      • #4
        Look at this:
        https://teamtalk.mastercraft.com/sho...highlight=MMCD

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