1992 PA quits running

My 92 PA just stopped. I've replaced the cam and crank sensors as well as the part beneath my coil pack (single coil not a 3 pack). I've replaced the "brain". Please forgive my ignorance as to some parts proper name but I'm a female accountant, not a mechanic. I borrowed a Mentor from a client and no codes show up. The car starts now but idles rough before dying. I've replaced spark plugs and wires and harmonic balancer as well. I'm really at a loss as to what the problem might be. I have fire and fuel. Anyone have any suggestions as to what might be wrong or what should check next?

I am just going thru this with my 93....I found the wiring to the cam sensor behind the power steering pump was cut thur and shorted to ground....Although your problem sounds a bit different....I would look at the wiring harness......I completely removed my engine harness (2.5 hrs work)and I am checking it on the bench...Good luck