DPF filter is missing

[Brock]

(02-28-2017 )aeIAzdLZ Wrote:  Recently bought ProStar with ISX. While driving home yellow triangle(warn engine) come on and off. After got home i did EGR tune up. now triangle permanent code 1993 (missing DPF or damaged). today DPF cleaned and inspected and still no luck also installed new Differential Pressure sensor. I did connect tubes on sensor wrong ways, after couple hundred miles i changed but still the same. Any suggestions?

I did the same thing, I changed my dpf differential pressure sensor right at the dpf and ended up putting the 2 little hoses on backwards so it didn't read correctly. I had to do 1 of 2 things, a maintenance reset on the dpf and the other was just to drive it, I honestly believe that after a certain number of key on/off that mine finally went away but I wish I could remember 100%