Hey Guys new here to the forums and need some help..My 96 Grand Prix SE 3.1L engine is stalling on me and only when the vehicle is hot after running..for example I will go from home to the highway and park at the store. and when I come to restart my car. the car will start but be very rough and sputter & backfire..I can put it in gear and roll. and put the gas pedal to the floor and will only go 10mph. plus car is fine starting when cold. already replaced plugs,wires,canister purge,and fuel regulator. still the same.