SCR Performance low, engine will derate

Discussion in 'Trucks [ Eighteen Wheelers ]' started by AlexD13, Aug 23, 2017.

  1. AlexD13

    AlexD13 Light Load Member

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    Jun 13, 2016
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    hi all, Had this light come up two weeks ago. Went into the shop and changed dosage valve. The mechanic also questioned the pump but after changing the valve and doing a regen, the code went away. Now we we have the same issue. Does anyone know what can cause it? The mechanic believes it is Engine related. he is having trouble pulling codes.
     
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  3. Heavyd

    Heavyd Road Train Member

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    That engine? What truck? What code(s)?
     
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