the problem i am having is my car was running fine, and then all the sudden it just cuts off. If I try to start it right back up it will turn over but will cut right back off. If I let it sit for a while it will turn back on a run for a few, but then cut back off. I have a brand new battery in. I was told it could be a number of things, but I was hoping someone could help me get started to figure out what it could be. The car is a 93 s500.