I have a 2007 6.7. I have a problem with it idling down really low and then revving way up. Doesn’t do it all the time, I have hooked it to my scanner and it doesn’t have any codes everything seems to check out fine. When it does this it will sometimes go dead and this is consistent for 3 or 4 days and then it’s back to normal. Also when it has one of these fits it’s like it has no throttle response and then it will be fine all of a sudden. I’ve turned my injectors on and off with my scanner they seem to be working fine. It has been deleted and I was told it could be a glitch in the program. I bought the truck from a used dealership and do not know who deleted or anything like that. Thanks for any help that could be given it will be greatly appreciated.

Egr cooler, the dpf filter. Everything that is supposed to be deleted when you delete one.