I have a 6.0 excursion 2003 that idles at a 50% engine load. It had icp and egr codes. I replaced those parts, now it has no codes and still llugs at idle. Pleanty of fuel, new filters. The map ebp and baro sensors all read between 14 & 15 psi. my ford guy hasn't even run into anything like this. Any and all help will be greatly appreciated. :bang I'm at my wits end with this thing
