ok here it goes,my 91 rs sat up at my parents house for about 3 weeks. i went to pick it up the other day and it started up and ran fine.it did sputter a little bit at idle but after i drove it around the block and came back it sounded normal even when i drove it home that evening it was fine. the next morning however i went to start it and it wouldn't start, it turns over just fine but it wont run, i did however give it some gas on the third attempt and it slowly came alive, it idled fine for about 5 minutes then sputtered and died, then i could never get it started again. i'm pretty baffled not really sure were to start. appreciate any help