PONTIAC GRAND PRIX TIRE FLAT

So When I Get The Car Up To 70 Mph And 3000 Rpms The Car Starts To Miss Like Its Running Out Of Gas Then If U Press The Trac Control Button...

2006 Pontiac Grand Prix I Have A Screw Lodged In The Sidewall Of My Tire You Think It Will Cause The Tire To Go Flat? :Roll: :roll: