Poor def quality?

Discussion in 'Volvo Forum' started by Roman78, May 29, 2021.

  1. Roman78

    Roman78 Light Load Member

    71
    26
    May 20, 2021
    0
    What this code mean guys. How to fix t. Thanks for your help.
     

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  3. Arctic_fox

    Arctic_fox Experienced mx13 execrator

    2,959
    12,512
    Sep 16, 2016
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    Welp grab onto your ankles and ask the shop to use lube because your in for a world of hurt and trouble is what it means. Could be one of a number of things or a symptom of a dozen others. Best case is you got some crap def and draining your tank and refilling or putting in some good def will fix it. Worst case is a wild goose chase fixing a cascade failure of crap.

    Start with the cheap options. Drain and replace. If it doesnt clear up its likely a sensor has gone bad. 1# culprit is the quality sensor in the tank. #2 is one or both NoX sensors. #3 is the def doser could be acting up. If you idle a lot or havent done it recently it could also be a clogged EGR. If none of the above....good luck hope it doesnt turn into a 55k repair job like my pete had to track down the issue.
     
    Roman78 and AModelCat Thank this.
  4. Dave124

    Dave124 Light Load Member

    87
    72
    Mar 11, 2019
    0
    I used to get that code, soon after refilling the tank.
    I was told not to top the tank off (try to keep cramming the fluid in after the pump clicks off).
    Since I stopped doing that, I haven’t seen the code since.
     
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