I am having some trouble with my car. The other day when it was driven, my husband went to pick up speed and it popped and wouldn't give any gas. Then after it was shut off, the car would turn over, but wouldn't fire up. Tried testing it with starter fluid to see if it was the fuel pump, and it still wouldn't fire. so far, I have had the crank sensor and the rotor button replaced, and it still does the same thing. Can anyone please help me to see what is wrong with it?