Need help fast. I sold a 96 legacy with 2.2. It would not start once in a while. I'd let it sit 10 or 15 minutes it would restart fine. Once started it ran great and never shut down. It got worse over time. I changed the ECM started fine. Thought I fixed it but I was wrong. ANY IDEAS ? Crank sensor Or coils? It doesn't have spark when it won't start. tried starter fluid. Car being pickup in 2 days.