I have a 1991 firebird with a 3.1 v6 and auto trans, just bought the car for my daughter, It will start and run rough for 30 seconds and then stall the car has been maintained at the dealer sinse new it was one owner when I bought it, has new fuel pump, filter replaced but still wont run the car has been parked for 3 years, and I bought it just a few weeks ago from the little old lady that bought it new has 123,000 miles on it and I have every reciept from the dealer that she ever spent she said that she parked it in her garage and bought a new car because she was having this same problem she had it at the dealer 5 different times and by the time the tow truck got it there it would start and not have the problem for a few months and then it would happen again any thoughts need to get it running so my daughter can get to work and school thanks Gary