[Runnin'On]

I have a 1984 Porsche 944 which I drive regularly. Less than a year ago I had 2 occasions when the car wouldn't start during the middle of the day. It starts fine every morning and it does eventually start. When I try to start it, it turns over and everything sounds fine. I had read about maybe the fuel relay failing? I ordered one, but never had a problem since and so I never installed the new relay. Now the problem is back. I am going to find where ever I put that relay, but wanted to check in and see if anyone had similar experiences. Will changing the relay solve this problem?