2015 Cummins isx lope at idle while cold

Unless I'm going deaf, it just sounds like a cold diesel to me. Sounds really good. Much better than my ISX, that's for #### sure. Mine literally lopes cold for about 30 seconds like it's a small block with a wicked cam.

 

Engine is at running temperature

 

Did you get the rough idle figured out? I’ve got a 2016 that does the same thing until it gets to around 45F or 50F degrees outside.

 

Sure did! Swapped that piece of #### out for a Signature 600

 

But no i did actually fix that lope. Had to get a different tune in it

 

Did the tuner say why the tune was making the truck run choppy when cold? Thanks for the info cus mine has been driving me nuts!

 

Mine was deleted. I'm assuming yours is too? Because my truck was trying to heat up the SCR can even tho it wasn't on the truck anymore. So it wasn't properly deleted