I put this in the TPI section, but I figured I'd try this section too.

I took my Z28 for about a 30 minute drive this morning to run some errands and when I went to start it up to go home it started up fine. I backed it out of my parking spot and went about 20 feet and it stalled and wouldn't start. I sit and tried to start it for about 10-15 minutes before finally giving up and calling AAA. While trying to start it I never smelled any gas, so I didn't think I was flooding it. It just clicked. I doubt it's the starter because I just had a new one installed last summer. When I got it home and in the garage I let it sit about 30 minutes and it started right up. When it stalled the service engine soon light came on, so I checked it out and it just kept throwing the "12" code over and over, so I'm not getting any kind of code. It did this a couple of years ago but ran fine ever since. Anybody have any ideas?