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Mx13 boost stuck at 14.4

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

  1. Dec 4, 2024 #1
    ColumbiaBoB

    ColumbiaBoB Light Load Member

    188
    21
    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
     
    ColumbiaBoB, Dec 4, 2024
    ColumbiaBoB, Dec 4, 2024
    #1
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  3. Dec 5, 2024 #2
    Deezl Smoke

    Deezl Smoke Medium Load Member

    518
    338
    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.
     
    Deezl Smoke, Dec 5, 2024
    Deezl Smoke, Dec 5, 2024
    #2
  4. Dec 5, 2024 #3
    ColumbiaBoB

    ColumbiaBoB Light Load Member

    188
    21
    May 3, 2011
    Des Moines, IA
    0
    It can read/clear codes do forced regen, just so i can keep an eye on stuff
     
    ColumbiaBoB, Dec 5, 2024
    ColumbiaBoB, Dec 5, 2024
    #3
  5. Dec 5, 2024 #4
    Arctic_fox

    Arctic_fox Experienced mx13 execrator

    4,377
    23,889
    Sep 16, 2016
    0
    Is your truck deleted?
     
    Arctic_fox, Dec 5, 2024
    Arctic_fox, Dec 5, 2024
    #4
  7. Dec 5, 2024 #5
    ColumbiaBoB

    ColumbiaBoB Light Load Member

    188
    21
    May 3, 2011
    Des Moines, IA
    0
    No
     
    ColumbiaBoB, Dec 5, 2024
    ColumbiaBoB, Dec 5, 2024
    #5
  8. Dec 5, 2024 #6
    ColumbiaBoB

    ColumbiaBoB Light Load Member

    188
    21
    May 3, 2011
    Des Moines, IA
    0
    No
     
    ColumbiaBoB, Dec 5, 2024
    ColumbiaBoB, Dec 5, 2024
    #6
  9. Dec 5, 2024 #7
    Arctic_fox

    Arctic_fox Experienced mx13 execrator

    4,377
    23,889
    Sep 16, 2016
    0
    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.
     
    Arctic_fox, Dec 5, 2024
    Arctic_fox, Dec 5, 2024
    #7
    Deezl Smoke and ColumbiaBoB Thank this.
  10. Dec 5, 2024 #8
    062

    062 Road Train Member

    6,289
    33,829
    Oct 20, 2013
    0
    You sure that’s the boost psi reading?
    Barometric pressure is going to be around 14psi at all times.
    @Goodysnap
     
    062, Dec 5, 2024
    062, Dec 5, 2024
    #8
    MAMservices and Oxbow Thank this.
  11. Dec 5, 2024 #9
    Goodysnap

    Goodysnap Road Train Member

    3,748
    9,117
    Jul 12, 2017
    0
    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.
     
    Goodysnap, Dec 5, 2024
    Goodysnap, Dec 5, 2024
    #9
    Oxbow, bjytech, Deezl Smoke and 1 other person Thank this.
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