Its been awhile since you have asked for help with no additional information given, you need to know if you are getting gas into the cylinders, typically if a spark plug smells like gas, that may be good. you need to know how to inspect for spark with a spark tester, any parts store should sell one and tell you how to use it or watch a video online. When you try to start does it sound normal or does the engine seem to turn over much faster than before, or strange sounding between each cylinder compression stroke then you assume you have a jumped or broken timing belt, if your car is a belt or chain??