DD15 low NOx conversion efficiency and bad DEF Quality

Discussion in 'Freightliner Forum' started by janboskit, Jun 28, 2016.

  1. tallmon

    tallmon Medium Load Member

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    320
    Oct 22, 2014
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    That really sucks. Search the forums or YouTube for"nox outlet sensor breath fresh air"
     
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  3. Freighliner DD15

    Freighliner DD15 Bobtail Member

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    Apr 3, 2020
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  4. Freighliner DD15

    Freighliner DD15 Bobtail Member

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    Apr 3, 2020
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    I forget to mention I did replace outlet and inlet sensor as well and codes comeback. The shop said I need new SCR One Box.
     
  5. Motto

    Motto Light Load Member

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    Apr 10, 2020
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    Yes you need it. But do you really want to spend 15k on that truck ?
     
  6. Driverdad

    Driverdad Light Load Member

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    Jun 13, 2015
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    You can take the Nox outlet sensor out of the exhaust and let it breath fresh air . You can follow the wire attached to the outlet sensor up to a box You would need to tuck the sensor inside that box to keep it dry . You can delete the codes with a OTR Reset Tool
    This will save you 15000$
    It will still throw a code for an illogical nox output but wont derate
     
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  7. Antinomian

    Antinomian Road Train Member

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    Feb 17, 2013
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    Hope you saved the old outlet sensor. You'll need an extra one to do the bypass. Here's a video on how to do it:
    Freightliner Cascadia DD13 DD15 SCR filter bypass
     
    Vitkouski and DieselDisciple Thank this.
  8. Motto

    Motto Light Load Member

    102
    126
    Apr 10, 2020
    0
  9. Freighliner DD15

    Freighliner DD15 Bobtail Member

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    1
    Apr 3, 2020
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    Thank you
     
    Motto Thanks this.
  10. Antinomian

    Antinomian Road Train Member

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    Feb 17, 2013
    0
    So what was the outcome? Did you just pull the sensor or did you buy a one box?
     
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