E90 2019 silverado tune help

Hi guys, so I recently did a dod delete and stage 2 btr cam in my 2019 silverado new body style. Now, when it starts, it dies right out. I can hold it up off idle and it sounds good, if i hold it up off idle and put it in gear, it will then stay running even when put back into park after driving. I am not a tuner, just trying to get the truck to stay running to take to a tuner, please let me know if anyone can help. I did the E90 upgrade and unlocked the ecm, i will attach a tune file, thanks.

you can take care of it, email info and contact below

Ah, that's a neural network vehicle. They're fun.