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  1. #1
    isaacv375's Avatar
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    Polaris msx 150 red light comes on... but no "check engine sign " .... help please

    hello yall, i have a 2004 polaris msx 150 where the red light blinks for TEN times every time i start the engine, but i dont get a "check engine" warning or anything like that. It only gets me up to 45 mph with a 6150 rpm... I had replaced the two sensors ( boost / air temp sensors) and went to 6950 rpm for little bit but now its around 6100 rpm. could it be that the sensors went bad already, (only been there few hours ) and i had not rolled the pwc but i dont know about the previous owner...i had replaced the sensors because they where under the specs so i assume they were bad, or could be that the red light shows there is a code on the computer ???


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Wake up the display first, just before starting the engine.

    With engine off, press the Mode button on the handlebar. Do you see the ten red blinks as soon as the display wakes up?

    Press start a few seconds later. Does the red lamp blink again?

  3. #3
    isaacv375's Avatar
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    Hi K447 , thanks for your reply , after following your instructions this is what i got...when i pressed the mode button it did actually blinks 27 times , then when i pushed the the start did blink 24 times.

  4. #4
    Click avatar for tech links/info, donation request K447's Avatar
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    Fuel level is not low on the display?

    Reverse is engaged or not engaged? Displays says Reverse?

  5. #5
    isaacv375's Avatar
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    fuel level its about half, and reverse was engaged yes.

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    How high is your oil level? Its got to be below the max after its heated up. The sensors get dirty if you have it too high.
    Also in regards to the low rpms check the gate valve it may me sticking.

  7. #7
    hey i have the same problem on my msx110 have you fixed it by any chance

  8. #8
    isaacv375's Avatar
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    Quote Originally Posted by nypogodee View Post
    hey i have the same problem on my msx110 have you fixed it by any chance
    Hey there, actually i did. Well i was getting around 45 mph with something like 6150 rpm, i found that it was an air leak on the hose that goes to the intercooler . I took the jet ski to the shop and they looked at the codes, but were all historic, so they erased them. Now im getting around 63 mph with around 7200 rpm pretty constantly .

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  10. #9
    Click avatar for tech links/info, donation request K447's Avatar
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    Thanks for providing the update. Always helpful to hear how the problem got resolve.

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