Mx13 boost stuck at 14.4

Discussion in 'Trucks [ Eighteen Wheelers ]' started by ColumbiaBoB, Dec 4, 2024.

  1. ColumbiaBoB

    ColumbiaBoB Light Load Member

    180
    18
    May 3, 2011
    Des Moines, IA
    0
    Hi, i have 2020 kenworth with mx13, bought the truck about a month ago. Just got OTR performance scanner and boost is stuck at 14.3-14.4, idle or driving, no error codes what could be the issue. TY
     
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  3. Deezl Smoke

    Deezl Smoke Medium Load Member

    441
    277
    Feb 12, 2011
    Hillsboro Oregon
    0
    First, what caused you to use the scanner? Is the truck not performing well?
    Can you plug the scanner into another truck and see if it changes? You may have a scanner issue.
     
  4. ColumbiaBoB

    ColumbiaBoB Light Load Member

    180
    18
    May 3, 2011
    Des Moines, IA
    0
    It can read/clear codes do forced regen, just so i can keep an eye on stuff
     
  5. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    Sep 16, 2016
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    Is your truck deleted?
     
  6. ColumbiaBoB

    ColumbiaBoB Light Load Member

    180
    18
    May 3, 2011
    Des Moines, IA
    0
    No
     
  7. ColumbiaBoB

    ColumbiaBoB Light Load Member

    180
    18
    May 3, 2011
    Des Moines, IA
    0
    No
     
  8. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    Sep 16, 2016
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    Had to ask. One of the budget deletes messes with a file that causes the truck to get stuck with high boost more or less exactly like that. Odds are good its a scanner issue then.
     
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  9. 062

    062 Road Train Member

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    32,885
    Oct 20, 2013
    0
    You sure that’s the boost psi reading?
    Barometric pressure is going to be around 14psi at all times.
    @Goodysnap
     
    MAMservices and Oxbow Thank this.
  10. Goodysnap

    Goodysnap Road Train Member

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    Jul 12, 2017
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    Do you mean the reading in the diagnostic tool is stuck at 14.

    With no power complaints or related faults , this is an issue with the tool.
     
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