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Sooo I have a truck not regening

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Perchie15, Aug 23, 2025.

  1. Aug 23, 2025 #1
    Perchie15

    Perchie15 Light Load Member

    246
    71
    Aug 16, 2021
    0
    I have a 2019 Peterbilt x15 Before I get to start it codes 1921 differently pressure is on and ETC driver circuit 5879 code and I try to do a regen from truck it’ll kick out within minutes and then 1981 dpf system pops up and also 5882 ETC pops up. I can’t get the laptop to do the regen I was doing it yesterday but now I can’t. I did change the differential pressure sensor and cleaned up the pipe between EGR and ETC This truck as always had ashload soot levels high and always use to just burn it off! But my question is. Is it the filter or the ETC Maybe the ETC is acting up cuz of the clogged filter? The 5882 code pops up shortly after I turn truck off

    ETC IS ELECTRONIC THROTTLE CONTROL ACTUATOR
     
    Last edited: Aug 23, 2025
    Perchie15, Aug 23, 2025
    Perchie15, Aug 23, 2025
    #1
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  3. Aug 23, 2025 #2
    062

    062 Road Train Member

    6,311
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    Oct 20, 2013
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    Are you using Insite? I mostly see the 6.7 Cummins and there’s a code or two where you have to do a filter reset to run a regen.
    @Goodysnap
     
    062, Aug 23, 2025
    062, Aug 23, 2025
    #2
    Goodysnap Thanks this.
  4. Aug 24, 2025 #3
    Goodysnap

    Goodysnap Road Train Member

    3,760
    9,165
    Jul 12, 2017
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    Certain fault codes will inhibit regens from occurring. Go after your throttle actuator codes. Since the throttle valve is on the air handling my guess is that’s your issue. The actuators themselves are a high failure part. Also check the electrical connection for corrosion or damaged pins. Once you fix your fault codes it should regen.

    Don’t fiddle running it too long as your allready at 1921 soot level.

    Once you get 1922 is when you need to maintenance reset with Insite for the filter.
     
    Goodysnap, Aug 24, 2025
    Goodysnap, Aug 24, 2025
    #3
    062 Thanks this.
  5. Aug 25, 2025 #4
    Lockport

    Lockport Light Load Member

    201
    131
    Mar 26, 2011
    Lockport, MB, CAN
    0
    Get an Ancel 2-way code reading device. Like the HD3300. You can force a parked regen. Cost you about $500, I think. I've no affiliation. That being said, I never leave home without it!
     
    Lockport, Aug 25, 2025
    Lockport, Aug 25, 2025
    #4
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