'90 Olds CS stops firing at running temp

Car just dies at running temp with no further fire until it cools down. Replaced the crank shaft sensor back in February and it had been running fine until a week ago. ICM tests are good. Coil packs have remained cool when it has died. Plenty of pressure in the fuel filter. At a loss here. Can anyone help?

Do you have spark when it won't start? proper fuel pressure? Post the engine also.

It's a 3.1L V6. Guess that does help:screwy:. There's no further fire when I try to turn it back over until it cools down. Could I have a false read on the ICM test because it was cold when it was tested?

Yes, this is an atypical icm failure as well as the cps.