[DieselSJ]

Watched your video. Find out what is causing the CEL. Put a jumper between the A & B pins on the OBD connector (I use a bent paper clip) and turn the key to the Run position (do not start). Light will flash code 12 - one flash, short delay, then 2 flashes. It will do that 3x, then it will start giving codes in that same format - series of flashes, short delay, series of flashes, then a longer delay. We need to find out what is causing that immediate light to come on.

Meanwhile, change fuel filter. I found out mine was very sensitive to any restriction at all. That seems to have cleared up with upgrading to the EP381 pumps.

1 - change fuel filter
2 - get codes
3 - fix codes
4 - set timing and minimum idle speed