08 pontiac grand prix 3.8
had car for 2 days then while driving the car just shut off everything worked bot wouldn't turn over the next day we messed with it a few min and it just started and ran fine I got car home and shut it off and it wouldn't turn over again i got my wife to turn key and i tapped on electronic throttle control now when i feather the throttle it starts and is hard to keep running has rough idle sounds bad no throttle response check engine light flashes but pulls up no codes and the airbag lights flicker while its running there was nothing wrong with the car before it died idk if it could be the electronic throttle body, pcm, ecu, i dont wanna replace a bunch of parts that dont fix the problem if someone has had this issue or has any info of what it could be please let me know thank you