Paccar Mx-13 EGR code

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Colth_00, May 3, 2020.

  1. Colth_00

    Colth_00 Bobtail Member

    4
    0
    May 3, 2020
    0
    Truck was running and driving fine. Parked it for the night. When I turned it on the next day fired right up fine but now have check engine seek service light.
    Paccar egr code. Spn 2791 fmi 11. Anyone got any ideas?
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. spsauerland

    spsauerland Road Train Member

    4,296
    10,886
    May 31, 2010
    West Harrison, In
    0
    What year truck we talking about?
     
  4. Colth_00

    Colth_00 Bobtail Member

    4
    0
    May 3, 2020
    0
    Sorry. 2014 peterbilt 389
     
  5. Goodysnap

    Goodysnap Road Train Member

    3,704
    8,984
    Jul 12, 2017
    0
    P1515 EGR derate
     
  6. Colth_00

    Colth_00 Bobtail Member

    4
    0
    May 3, 2020
    0
    What does that mean?
     
  7. Goodysnap

    Goodysnap Road Train Member

    3,704
    8,984
    Jul 12, 2017
    0
    It means you have another fault code that is your root cause of the problem at hand. The derate is the result which limits the fuel until the problem is corrected.
     
    pushbroom and spsauerland Thank this.
  8. Colth_00

    Colth_00 Bobtail Member

    4
    0
    May 3, 2020
    0
    Ok. I also have a VGT code. Spn 2795
     
  9. Goodysnap

    Goodysnap Road Train Member

    3,704
    8,984
    Jul 12, 2017
    0
    Too generic really. FMI? The fault Points to VGT position erratic. Many possibilities.

    You need to get to a shop for diag.

    I would start with checking a fuses labeled ECM or engine power supply. Check power and ground supply to VGT actuator and check the resistance of the 120 ohm resistor internal to the actuator. If you have the ability pull the actuator and check VGT sweep. Beware - you need Davie to install and calibrate the actuator if it is removed.

    Good Luck
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.