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  1. #1
    klone's Avatar
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    1999 polaris 1050 slx going into limp mode?

    i have a 1999 Polaris 1050 slx 120 hp,ive been having problems with it going into limp mode 20 min after riding it,let it set for 10 and rides fines for another 20 till it goes back into limp mode.ive disconnected the temp sensor jumped the wires on fuel sending unit and oil sending unit and its still going into limp mode.this is a very annoying issue and im lost ive done everything I could think of,please help!!!!!


  2. #2
    casey67's Avatar
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    The 99 SLX only has limp mode for overheat.
    Does the MFD work ? Limp mode keeps rpm's at 4500 and it will be fairly accurate.

  3. #3
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    Do you have the original or updated ignition? Could be a stator going bad.

  4. #4
    klone's Avatar
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    no the display doesn't work I have that disconnected also,it does have the updated ignition system.i have the temp sensor disconnected so it should think the engine is always cool.

  5. #5
    casey67's Avatar
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    With the updated CDI- the "limp mode" input should be a grey wire with spade type connecter- it will be plugged onto the terminal board with the tan temp senser wire. The CDI wire might be tan.

    With that unplugged ,it will not be in limp mode.

  6. #6
    klone's Avatar
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    that wire is also unplugged it was unplugged when I bought the ski couple weeks ago so I guess they was having the same problem.They took it to a local repair shop for this problem said the problem was fixed when I bought it,I had to replace impeller,bearings,nosecone and housing because it was drove into a sandbar while running.Ive been talking to the repair shop that did the work hes had me do all the cross wiring for oil sending unit fuel sending unit and I unplugged temp sensor myself,took it to lake yesterday ran great for 30 min or so and out of nowhere it goes into limp mode,ive tried jumping all the wires separate and yesterday I jumped all at the same time and still no difference

  7. #7
    casey67's Avatar
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    To me, it sounds like you have a miss-fire.
    Have you replaced spark plugs ? Spray some water on the spark plug wires one at a time.
    It's also possible for the coil to allow the spark to not reach the plugs.

  8. #8
    klone's Avatar
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    yes the plugs are new and so is the coil haven't tried spraying water on wires yet I will try that.the reason Im saying its going into limp mode is because I can plug the display in and the red light blinks when it starts acting up.the red light is the only thing that works on the display im looking for a used one so I can replace that one

  9. #9
    klone's Avatar
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    just got back from testing it out and still same problem,although I was able to ride longer today before it went into limp mode I never thought I would have a ski stump me like this escpecially when its mine instead of a customers...

  10. #10
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    Have you tried cutting back the plug wires and reinstalling the boots? I have a plug wire that likes to lose contact occasionally and I need to reattach it to the plug.

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