Following! I use my truck for work and often times I'm in very cold conditions and leave the truck run or need to idle it up manually by foot to get it above 50°C.
I had this issue. Cleaned MAP sensor like you said. Was pretty carboned up. Still had the issue, basically no turbo and truck could barely hit 70km/h without revving quite high. Was a -25°C day and did 750km driving prior too this coming on. Also, did not have a winter front on it at the time...