Rep Power: 0

ok i have a 94 coupe with a gsr in it. i had problems starting it the other day. it sounded like it wasnt getting enough fuel. so i checked the fuel pump is good. checked the fuel rail it is getting fuel and the fuel pressure regulator is working. so i checked the fuel relay and it was bad. i replaced it and she started right up and ran like a champ. when i shut it off i wanted to see if it would start again. when i turned the key it sounded like it shorted out. now i have no power. had the battery tested it is good. im lost anyone have any ideas?