Inside this box (see image) is the Diesel Oxidation Catalyst (DOC) inlet pressure sensor connector, but I’m not sure where the box is. It’s not on the DPF box. I’m working on SPN 3509/FMI 4 in an EPA10 DD15 engine on a 2014 Freightliner Cascadia.
Locating EPA10 sensor box on DD15 engine?
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by PE_T, Mar 5, 2020.