Tuned it now it dies

[Rubenk]

So I tuned a friends truck with a reputable tuner(not looking to blast them) and it will die when coming to a complete stop sometimes. Return to stock, zero issues, tried several different tunes and all done the same.

Is the tune highlighting an actual mechanical issue? HPOP related or something? Been a while since I had a 6.0 so just wanted to check in here first.

Early 2003
EGR ******d
Studded
Stage 1 powermax
FICM Tune from PHP 40hp
blue spring kit

Thanks all!

 

[Rubenk]

Just got updated that he replaced the fan clutch(threw a code) and it hasnt died since. Guess something weird was happening with that sensor shorting and killing the truck.