Cm871 codes 2961 2764 4214

[JetHauling]

I have a boost. No pyro.. I forgot to say that I also pulled off all the intake from the egr valve going into the head and clean them best I could with a tooth brush.. I will check out what you said to track down the sensors.. I feel as if it's a sensor issue, has anyone had problem with the OAT(outside air temp) screwing with the truck. My truck thinks it's always -20 to -50 degrees outside, meanwhile it's 50degrees.. I bought the truck from a friend of mine who specd the truck me and is the original owner. He says the truck has been doing daily regens since new.. We run anywhere between 400-600miles daily.