Hey guys looking for some help I have a 2014 Peterbilt 367 with a isx15, this morning my low def light turned on with a C. E. L. But was running good, after about an hour of driving my second C. E. L. Turned on and derated me. I pulled over and shut it off for about an hour then started it back up number two light turned off and def light turned off and my power came back. I went on to my job and got it done then headed home ran good all the way home. Shut it off while I worked on my outriggers, now all lights are off. Oh yeah after second light turned on fault was catalyst dosing unit, now no lights no faults and back to full power, anybody have any experience with this kinda problem I’m new to these after treatment systems. Any help would be great thanks.