I dont get whats wrong. I checked fuel spark everything is good. all the sudden it didnt want 2 start. every once in a while it will start. but then the tach will jump around but the car will idle the same ill rev it up some times it will rev others it jus dies but after a lil bit it will just turn off. i dont get it

 

If the tach is bouncing then its definitely an ignition problem. Most like a weak coil and bad iginitor. check the colour of the spark. orange is a weak spark