I've had similar issues with MIL. Codes P2000, P2A00, PA245. EGR cleaned previously, O2 sensor replaced previously, desooted this week. All updates/flashes current according to dealer. I was told I need to drive truck harder to burn out the soot. No excessive idling. I'm around 26,600 miles and have had no other issues. No difference in the mileage I've been getting or the running condition. I thought it was just a computer glitch that keeps the light coming on. The dealer took 2 days to come to this conclusion.