240sx 1992 coupe wont start, windows not working and dash electronic not working

[bret240sx]

ok heres my storie... i drove to cornwall, went to get my hair cut, then got into the car, start the car then it droped, start it again then it droped again start the car again then it worked ... then got back home, went to get my budies. then went to esso , put 5$ of gas then BAMM.. the car does not start anymore ... the dash sudenly got no electric (no digi meter) and the windows sudenly got freezed (could not bring it back up anymore). we check it out a bit, we tried to see if we can spark it from the coil.. it did not spark . i check all the fuse and all are O.K. The batery is new. all other electric is working fine in the car ... maybe i thinks some wire are dirty.. there is alot of grease in the hood so maybe..

does any 240sx 1992 coupe kad24de user would know any of this ? im new here and i want to modified my car and learn and beacome the best good looking 240sx here on nicoclub thanks