My tahoe sat out side for 2 days in40 below with the windshield and it wont start it starts for a second then kills then ok turn key off and try starting it again and it starts for couple second and kills so i figured it was fuel pump changed it does same thing seems like it not getting enough fuel im getting gas from the up to the bleeder but not to the carb
I have no idea what you are trying to say with that confusing run on post.
Could be anti theft system. Am not familiar with how to reset or diagnose this, but a very likely problem. You could also check your fuel pressure.