I have a 2013 6.7 Super Duty. I was shopping today, got back in truck, started it, and notice an “engine” light on. I had no other errors or alarms. Nothing was coming up concerning DEF. I checked error code, and it was P207F. Looking online concerning that code, and it was always related to either DEF, or reduction in power, etc. I have none of those warnings or issues. It runs fine, even with the error showing. I was able to clear it and drive about 10 miles with it cleared, but now engine light just comes back on. I have 113,000 miles on the truck. I pray there is nothing expensive going on. Any suggestions or help would be appreciated.