Who’s tuning?
Have you tried returning to stock and see what it does there? Do you have a switch installed or adjust on the screen?
Had that issue on my truck.
Turns out the fuel pump inertia shut off switch under the passenger side dash must have got bumped when we were working under there.
Pretty unlikely but its worth a check, its a red switch. Can be accessed through the passenger side dash access panel
I did open that panel while tuning trying to get the bumper lights to work
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