2006 F250 6.0 Powerstroke with an Edge tuner. EGR cooler has been deleted, left EGR valve in truck. I was towing my camper down to Charleston, SC and about 200 miles into the trip my CEL came on. Ran a diagnostic and it showed p0401 egr flow. When we arrived at the campground took the egr valve cleaned it and reset the computer. No CEL while we were there but about 200 miles up the interstate CEL came back on with same code. I have read on some forums that you cannot run the 2006 without the egr valve so blocking it off is no option. I hate to purchase a new egr valve so does anyone have any ideas?
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