I have a check engine light that says Fail 1, Fault 1, Eng 1, Spn 411 . I was driving and the truck lost power, I have 2 yellow check engine lights on. Does anyone know what It could be? The truck is 2014 cascadia with the detroit engine
Help Check engine Light code
Discussion in 'Questions From New Drivers' started by Catrachotrucker, Jul 21, 2020.