If your car dies and hesitates check your fuel system fuel filter first then look at the fuel lines, look for fuel leaks then are any lines damaged restricting fuel flow, pressure test the fuel system . If you have a engine stethoscope listen to the injectors they should sound like bells ringing, if they sound quiet or dead (thump sound) there's a problem ,nice clean ring is good. Listen for the fuel pump is it running properly. Hope this helps