6.0 Rough Idle

[00700]

Went out this morning started it up idled afew minutes then died. Restarted and it idles very rough I put it in reverse and idle was worse and eventually died. I let it sit for a while and restarted still doesn't idle correct I'm not seeing any colored smoke or any thing? I checked codes and doesn't show any. Where should I start?

 

[turbotrev]

try unplugging your ICP sensor and see if it clears up when its idling. also try wiggle testing the ICP and IPR pigtails when idling. You could possibly have the IPR going out.