hi im having issues with my 2000 ford v6 mustang. the car was running good but the other day it rained and got 21 degrees and car was covered with 1 inch thick ice and stopped running. it cranks but wont start. and i checked and the fuel pump is turning on and pumping fuel and the fuel is getting through the fuel filter. one thing is when i do crank it if i pump the gas pedal fast while im cranking it then it will seem to get spark and back fire but wont start. also my check engine light said my egr was bad so i changed it and reset light but it came back on and said it was bad again. i dunno what to do plz help. and also the car has a small exhaust leak on the headers on passenger side. any help will be welcome