I recieved these codes will working in the the bush @-38c,= -40f. It did not seem to severe but the turbos were not spolling up on acceleration, no psi at all. the truck did not have the ussuall jump. When I got back to my hotel that night checked on other sites and found that it was P2263-Turbo acuator sensor,
P2536- turbo charger acuator. Seems that the tube plus sensor off the drivers side exhaust becomes plugged up with exhaust sludge, the cold weather precipitates this sludge in the sensor.
Once again Cheesit chimed in to help somebody else and pointed me in the right direction. I went to the local Ford dealer they had the sensor/tube assembly =$80.00 can.. Installed took 1/2 hour in parking lot. . The truck has 950 miles since and is running as before.
Was able to delete codes with my H&S. There is a lot of info on this seems to be a common problem. Replacing was easier than trying to clean it out.

 

You do alot of extended idleing?

 

Not at all,I try to never idle and now have 170,000miles on truck with the original brakes.All highway.The sensor will eventually plug off due to exhaust gases.Not sure if there is a cure to prevent this ,but if this sensor lasts another170,000miles I will be happy to replace again at that time.

 

I think you can get it at Ford for less than 100 bucks plus the tube.

Re-read your posting...you already got the part.