99 3406e 1lw

Hello everyone!! I have a 99, W900, I shut off the rig; parked for a little rest. After an hour I started the truck and let it run for about 5 min and took off, then all of the sudden the yellow check engine came on and the truck started to jerk I pulled to the side and shutdown let it cool for 15 min after I checked the oil, water and belts; started the truck with no check engine light on and ran smooth for about 10 miles and started doing it again with no light on this time. I changed the fuel filters and put some injector cleaner but it didn’t fix the issue. Any suggestions where to start, please and thanks!

 

I got 55 nothing different than 55; I repeated it 3 times

 

55

 

Thanks for the effort! I got it figured out while I was shaking the harness and it was rubbing against the block exposing the wires on the back side; it’s fixed now.