2018 L5P Delete Question

[notrosh]

Hey all,

I am going to do a full delete on my 2018 L5P. Right now I'm throwing a code for an upstream nox sensor. That is the only code I'm throwing right now. Will I need to correct this issue before I delete/tune the truck using the tool?

Thanks,

-n

[TBone64]

You might get a better response in the diesel tuning section, this is Gen 5 GM gas tuning section.