1st_Id_Redleg
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2013 Mack CXU613 derate
in Engine and Transmission
Posted · Edited by 1st_Id_Redleg
My truck has a code for bad dosing valve and is partially derated, max speed is 60mph. After I replace the valve do I need to go to the dealer in order for the computer to learn the new valve, or will it eventually learn it without the dealers computer? Also, will I need a forced regen? Thank you in advance.