@lexstar, I don't understand anything you said.
@Leadfoot, When the car died, after the long run, when I tried to start it again, the engine would idle at 100-300 and then die out the first few times I tried to start it.
"Try with the AC on and see if it happens again in the same situation."
That should be fun...purposely run the car way beyond the speed limit to try and get the engine to shut off on me. Talk about troubleshooting...that should be fun; if I don't crash, "Sorry officer, I was trying to get my engine to shut off on me :)." But I guess you got to do what you got to do.
@1990LS400, Not relating directly to this problem, but a few days this winter here in NY, the temp was below 10 and those days the car either didn't start, or would start and idle at like 100 and then die out...if I revved it, it would die immediately. Would that be a problem with steering fluid leaking on the alternator?
Thanks