My DEF gauge is blinking and stop engine light

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rudythiessen, Oct 18, 2019.

  1. rudythiessen

    rudythiessen Bobtail Member

    1
    0
    Oct 17, 2019
    0
    I have codes spn 3225 Fmi 4 spn3224 4 spn216 3 spn 66 2 spn 94 1 spn94 18 spn4340 5constant) spn65304 11(constant) if I get the codes deleted The light on DEF gauge and stop engine light is gone and I can drive for a long time until it reappears, but the codes I just listed stay. A few mechanics have not been able to tell me what do, I can do repairs myself just need to know what to do which sensors to change Or which connections to check, 2011 Peterbilt 386 with Paccar mx13 1.2 million km
     
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