Cascadia 2015 Check engine light

Discussion in 'Ask An Owner Operator' started by Prabhjot8, Dec 14, 2020.

  1. Prabhjot8

    Prabhjot8 Bobtail Member

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    Mar 15, 2020
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    I have a 2015 cascadia
    Every time I go up the hills my amber light and the check engine light comes on. And then I have to park and do the regen for the check engine light to go. The codes I get is for poor def quality and emissions system problem, I got my filters cleaned a few months ago and drove less than 100k since I got em cleaned. Can anyone pls help me understand why is it happening? Also I’ve changed the nox sensors too
     
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  3. Judge

    Judge Road Train Member

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    Did you change the $100 filter on the def tank?
     
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  4. magoo68

    magoo68 Road Train Member

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    Enter MHYN in search he explained problem numerous times . I don’t think he’s here anymore
     
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