I bought this car a few weeks ago and at the time I bought it, it was running ok. I went to drive it at work for the first time and it died on me right before i left. I left it alone for about a half hour and checked it again and it got over to work just fine. When I went to leave, it started and died again within seconds. My cousin thought it was the alternator because one of his old cars had done the same thing so we went and got it tested along with the battery. The battery had gone bad and the alternator was getting there so we replaced both and it started up after we hooked them up. The next day I got ready to leave with it to go to a transfer day thing for college and it did the same thing it was doing before. The guy I bought it from also had a plug for us to switch out that I forgot to mention. (it was for the fuel pump, no change with that either though and we did that first) We are all out of ideas and I was hoping someone on here might be able to help.
Thanks in advance to anyone who can help,
New grand prix owner