I ended up with a P2262 engine code after pulling my tractor a little over 100 miles, and restarting to leave for home after dropping it off. Big-O Dodge in Greenville, SC, that I am very satisfied with, replaced the turbo. There was nothing mentioned about cleaning it, but they replaced it under TSB 11-002-08. The service rep mentioned that the new turbo is "larger". Do any of you guys know anything about this? I asked him if they have come up with a solution to the carbon buildup yet since I am not interested in replacing the turbo at every other oil change and got the usual answer... "drive it hard".