On this problem it was really tough to figure out what was going on.

We removed the egr valve and cleaned it up then it ran decent for a while. The problem kept creeping up so a few months later the fuel filter was replaced but still was running rough.Changed the spark plugs too that was no easy task either It was driven for a few months more when in January the fuel filter popped and the van was stranded. it took a few weeks to convince hubby to change the pressure regulator and now the problem is fixed. thats one problem fixed and a few more to go.

No more sluggish rough idling