I have a 91 Mitsubishi Eclipse GSX Turbo AWD and it will start but wont stay running if someone had some advice so i could get it fixed i would appriciate it.
Oh and it is an electrical problem and if i dont take the battery cables off at night then the battery will be sucked dry.

YOur fuel filter/pump/FI might be pluged

hmmm have you left the sun roof open over night outside or leaks that cause moisture inside? I have had multi ECU's failing due to mosture damage believe it or not. Has your eclipse got an ETACS ECU? if so get that checked, if its damaged can suck your battery, my one did, still have to see whats wrong with that thing actually... Not starting, your main ECU might be at fault?
Again it could just be something putting a heavy load on the electrical system which then maybe isn't getting enough voltage to the spark plugs or its to much of a load on the engine through the alternator??