H3LZSN1P3R
You're doing it wrong
Sorry for the revival but idk about the dealers around you but the ones here are clueless about anything other than bolt on parts they cant even figure out how to enable dealer codes on the scanners loli hear ya. my last cummins was a 5.9 cr. i'm REALLY hesitant to risk any chance of voiding the powertrain warranty through 100k miles,
but if this is safe, i'm happy to try it.
in my experience, the dealer, if they *want* to dig hard enough, can find most anything that has been manipulated from an ecu standpoint.
so, i'm happy to wait for additional feedback.