High IAT

[rspeers]

In the last few weeks my truck has been showing 200+ on the Insigh. Used to show 125-150. Its a daily driver dueing mostly freeway cruising around 65. During regen it drops to under 100. Engine runs fine geting around 16mpg. Any ideas on what might have happened?

 

[RonD]

Sounds completely normal to me

 

[sag2]

Are you sure which sensor you are reading, pre or post turbo? If pre check the air box for sealing to the fender and radiator support. And look at the plastic deflectors at the radiator and intercooler. If post turbo, everything is fine.