OK, you asked for it!
I have a 93 Geo Storm, the 1.6 liter with Automatic an air. I bought it new.
It has 175K miles on it and one day it simply stopped running.
Every once in a while it will crank and run a little, but once it warms up that's all she wrote.
I grew up working on cars so I've spent many hours trying to figure it out. I have checked and replaced, the fuel pump, fuel filter, the fuel pressure regulator (vacuum operated gadget on injector rail and I've removed and tested the fuel injectors and have tested the fuel pressure. I've completely rebuilt the distributor, replaced the plugs, wires, coil, oxygen sensor, it has cylinder compression and is firing. It is getting fuel. I've replaced the computer brain, and tested/replaced all the relays. All the electrical stuff works, the motor simply won't fire. only has 12 "flash" codes and all are clear.
I've wondered it the EGR valve could have a rupture, but everyone I talk to says that would not keep it from running, but would only make it run rough.
damnedest thing I've ever seen. It's been sitting for several years now. I have a very hard time giving in and accepting defeat. I guess I'm hard headed that way about some things. . .