So I think my main relay is going. I've got all the symptoms. The car has randomly stalled 3 times in the last 7 months, and this evening it refused to start. It would crank and ignite, but then stall as soon as I stopped engaging the starter. I let it sit a few seconds and it started fine. Another guy had this problem with his GSR, but it turned out to be a loose transmission ground cable. All my cables are titte, so I think it's my main relay. Are there any tests I can to do confirm? Is it easy to replace?
THanks.

 

Another thing it might be is the ignition switch.Honda and Acura vehicles experience this problem. The vehicle starts, but when you release the key, it dies. If you have no dash warning lights when the car stalls,that would indicate the ignition switch is the problem. If your dash warning lights come on when the vehicle dies, the problem is elsewhere.