please help me sentra 87

[foxup]

hey i have a nissan sentra 87 and i dont know whats going on!
te car works just fine but sometimes it stops for no reason, usualy when i drive it a lot. it wont start for hours sometimes it only runs again on the next day.does anybody has any idea about whats wrong?i just changed the fuel and air filter i think it is something electronic...
please help me!!!i really aprecciate thank u all!!!!!!!!!!!!

[SR20B12]

does it still do the samething after you changed the air and fuel filters?

what type of 87 sentra is it? does it have one or two wing nuts on the air filter.

[foxup]

yes it still doing the same thing and it wont restart again after a while it has only one wing nut on the air filter