91 cavalier heat up problem

I got a 91 cavalier that runs great for around 10 minutes and then it just shuts off because it's not getting any spark, if you leave it sit for a few hours it starts fine and will run for another 10 minutes, no more no less, replaced the coil packs and coil module, have no idea what else to try, a little help would be appreciated.

Sounds like an iginition module going bad.

the coil module and the ignition module are the same part, i already replaced it, there's something else that's wrong with it that i have no idea what it is.

i had a similar problem w/my 91 z24. i'd check your crank sensor and if thats ok check the wire that runs from the crank sensor to the ignition module it could be shortin out.