Odd 89 D150 engine dying issue

[captainchrysler]

I'm looking at getting an 89 D150 360 auto and it has a odd issue. It'll run fine for 10-15 minutes then shut off like you turn the switch off but will start right back up again and run fine for another 10-15 minutes. It sounds like the dist or ECM is getting hot BUT restarting right away doesn't fit that problem. Any good ideas?

 

[7mopar]

fuel?

 

[65 sporty]

What does this have for a ignition system? Does it have a module like this one?

It's fuel injected isn't it? It should have a computer in the LF fender well, if it is fuel injected the ECM controls spark