DTC 2121 - Throttle Error code

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  • wviveen
    • Dec 2004
    • 133

    • Santa Monica

    • 2016 Nautique G23

    DTC 2121 - Throttle Error code

    Hello was wondering if everybody else has experienced this error code ? I have a 2016 G23 and occasionally the boat goes into "limp" mode and throws this error code.
    "Foot pedal position sensor 1 lower than foot pedal position sensor 2".

    Turning the power on and off gets rid of the error and the boat will work again properly. I have already replaced the Livorsie/Throttle body unit twice actually (brand new one 3 weeks ago and known functioning version before that). However that did not do the trick, i am going to replace the cable/connection to the engine just to be safe, but yesterday while driving i pulled out the cables and gave them a good shake to check for loose connections. But it did not throw the error....

    Thoughts on what else it could be ? thanks already !
  • wviveen
    • Dec 2004
    • 133

    • Santa Monica

    • 2016 Nautique G23

    #2
    Nobody else had this issue before ?

    Comment

    • dttheel
      • Jan 2014
      • 193

      • Crozet, VA

      • 2023 GS 22 2013 SAN 210 TE - sold

      #3
      I'm having this issue now. Mechanic replaced throttle body. That fixed it, at first. Now there's a part, I don't know what it's called, that is shorting out and burning out the fuse supporting the throttle body operation. I'm sure that sounds like jiberish, but I am no mechanic. That's the explanation I've gotten. It's taken a few rounds to get it right but we are hopeful that once the parts come in, we will get a couple more runs in before the cold weather comes.

      2013 210 for reference.
      DTT
      2013 SANTE 210

      Comment

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