Keeps asking for regen

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by arsenm277, Nov 13, 2018.

  1. arsenm277

    arsenm277 Bobtail Member

    7
    0
    Jul 13, 2016
    Las vegas
    0
    Hi everyone, please help me out. I have a 2012 PETERBILT 587 with a Cummins ISX15. Truck has 300,000miles. Truck keeps asking for a Regen. I have changed the differential pressure sensor and put a brand new dpf on it. Truck ask for a Manuel Regen about every 200 miles without a load on. It does a Regen for about an hour and everything is fine for another 200 miles. I hooked up to insite and got code 3883 and 559. Any help would be appreciated. Thank yoi
     
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  3. AModelCat

    AModelCat Road Train Member

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    Jul 7, 2015
    Canuckistan
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    No idea what the codes are but you might be looking at needing the DPF cleaned.
     
  4. Goodysnap

    Goodysnap Road Train Member

    2,992
    6,993
    Jul 12, 2017
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    You need to troubleshoot the 559. Fuel rail pressure failure to meet commanded. New fuel filters? When this fault is active regens will be disabled. Plus if you dont have adequate low side pressure you may be setting an dpf fuel pressure code which I believe is your other code, but double check the numbers as 3883 does not come up for me. Get in the shop for a fuel system diag, could be anything In the fuel system.
     
    pushbroom and AModelCat Thank this.
  5. HopeOverMope

    HopeOverMope Road Train Member

    1,801
    3,203
    Feb 25, 2016
    I-20 LOUISIANA
    0
    At least, register on Cummins quickserve, for free, and key in your engine serial number. Go to the service side and follow the trouble shooting tree for those fault codes ASAP
     
  6. skellr

    skellr Road Train Member

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    Jul 17, 2011
    The Village, Portmeirion
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    Quit idling.
    If you don't idle then something is broken. And it's not going to fix itself if you find a way to ignore it.
     
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