Regen

Discussion in 'Volvo Forum' started by Road-Master, Sep 3, 2023.

  1. Sep 3, 2023 #1
    Road-Master

    Road-Master Bobtail Member

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    Sep 3, 2023
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    Sort is a 2017 vnl 780 and because of the cooler weather, its soot level shot up real fast. A parked regen requested, started and stayed at 1150 rpm then quit after two minutes or so as it tried to raise the rpm. Several attempts to no avail. CEL has codes 20DE00 and 20EE00. It has new Ahi module, 7th injector, 7th injector air pressure regulator and air pressure release valve (the whole assembly ). Any reason what coild be wrong or need changing?
     
    Road-Master, Sep 3, 2023
    Road-Master, Sep 3, 2023
    #1
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  3. Sep 8, 2023 #2
    Siinman

    Siinman Road Train Member

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    Might check and see if the Flex pipe is damaged. If it is damaged it will not get up to temp to do that burn.
     
    Siinman, Sep 8, 2023
    Siinman, Sep 8, 2023
    #2
  4. Sep 9, 2023 #3
    AModelCat

    AModelCat Road Train Member

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    Probably have to troubleshoot the issue related to the codes you posted.
     
    AModelCat, Sep 9, 2023
    AModelCat, Sep 9, 2023
    #3
    QUALITYTRUCK Thanks this.
  5. Sep 24, 2023 #4
    86scotty

    86scotty Road Train Member

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    Leak in air-to-air cooler/piping will prevent regen and cause EGR temps to rise quickly.
     
    86scotty, Sep 24, 2023
    86scotty, Sep 24, 2023
    #4
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