hi idle question
 

Hey everyone i have the ts chip installed on my truck. I live in northwest pa so its still cold and snowy here :scare2:. When i put my switch to high idle in the morning the EBPV kicks in and my truck makes a constant shop vac on steroids sound, it also does it when driving at a steady pace(it kicks off when i accelerate), stops when it warms up , Im pretty sure this is normal but im not sure.

is this normal ?
if not could it damage anything ?

thanks

This is a normal function to try to heat the engine up!