Ok the weather was really muggy outside(rainy, foggy).
the car was running fine until i parked it and was just idling the car suddenly sputtered and just turned off, i cranked it again it wouldnt catch, tried again and it caught on, but same problem just died down again.
If i keep the rpms high its fine.

so i went to school came back and it started up after a few tries drove the car half way and then it wouldnt start at all, got it towed home, changed the cap+rotor next day (already had new wires, and plugs) and the car started up again, drove it, and then died again! and wouldnt start, towed it to the mechanic this time...and tried starting and it started up again!

if the rpms are high the car stays, and sometimes it will run fine for 5-10mins and then just shut off, and then not turn on for a long time. If i leave it for a few hours and go back it may turn back on...

im guessing its an electrical issue
Check engine light is NOT on(the bulb is not burnt out)
no other warning lights are on.
the car works fine otherwise.

i just cant seem to figure out what is the problem?