Truck has 160k on it, has New Turbo, EGR 30k ago, FICM 10-15k ago. This morning I pulled into gas station after 40 minutes highway drive, noticed it was running rough at idle, like a miss. I shut it off and went inside, came back out started it was still running rough. Drove on to work, checked it out more during my lunch. I've got a SCT X4, so I looked at Codes None, checked FICM 49V. I drove to store, it ran decent off idle, but missed at idle. I noticed while driving under light accelerator it was producing light black smoke. After lunch i was checking, and it started running worse, wouldn't rev up in gear. I then noticed that it didn't want to rev up in park. I'm new to the diesel world.... Any Help???? Fuel Filters I bought with 117K, and haven't changed them??? Also truck is due for Oil Change (5000 Mile) and Air Filter.