500 efi starting problem??
 

one of my 500 efi's is having a starting issue. I ran the boat for about 4 hrs. most of which was at idle, I shut the engines down for about a half hour and when I started them back up, one of them acted like it wasn't getting fuel and stalled. I restarted it and it ran for a second and stalled. When it was running it acted like a vacuum leak and the computer was trying to compensate for a fuel issue. Twenty minutes later i tried to restart the engine and it was fine. I went back almost 2 hours later and it did the same thing, i tried to restart it right after it stalled and it ran great. Anybody experience this or have any suggestions???