2013 g25 dtc 111??

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  • Blewis128
    • Jul 2019
    • 1

    • Kennesaw GA

    • 2013 G25 550Hp

    2013 g25 dtc 111??

    Hi All,

    As a newbie to the Nautique world, (coming from an x46 MC) I am attempting to understand what would have caused my g25 to throw a “DTC 111: IAT higher than expected at stage 1” trouble code on the way home last night. This was the first time I had put the boat in the water since purchase and we cruised out to the cove (maybe 20 minute ride) with no problem. The boat has the 550 motor and it’s a coastal edition if that makes any difference at all. Also to shed a bit more light, we typically just cruise out to the cove, anchor and relax for 4-5 hours listening to music. I believe I read somewhere this could be a voltage problem which would make some sense as we had been sitting for 5 hours listening to music running down the 2 aux blue tops we have?

    I greatly appreciate any advice or guidance.
  • mpost
    • Jun 2007
    • 137

    • Monticello, MN.

    • 98 SN GT40

    #2
    I found this link on a standard 111 code. Sounds to most likely a be bad sensor. It talks mostly about it being a faster than expected voltage change across teh IAT. Dont think that would have anything to do with your Aux batt. when teh boat is running off the alternator.
    https://www.obd-codes.com/p0111
    1998 SN GT40
    84 2001 Ski Nautique (sold)
    Monticello MN.

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