I am thinking more like a temp senor or idle air mixture.
here is testing for idle air. http://www.mediafire.com/?y0y2mymweay
Car runs like a top when cold. When it gets up to op. temps and you put a good load on it, say a hill(but doesnt need to be a hill) it will sputter and cough and eventually stall out. It will fire right back up but still run really rough. If you wait even a min then start it back up it will idle nice and you can drive about 10 feet before it sputters and dies again, like something electrical is overheating it seems.
These vehilces come with either the Magnavox coil pack (1 unit for all 3 coils) or the Delco style (3 individual coils) This car had the magnavox in it so i swapped it out for a delco style witch is supposed to be better. got a used delco module and coil packs from j/y, installed, and car did same thing it did with magnavox, got a NEW module and used the j/y coil packs, same thing. dont think its coils b/c it does the excat same thing with either style coil packs. Im leaning toward a bad crank sensor but ive never heard of one acting up even when it gets hot. and usually will throw a code, although im not reliying on that becuase it is a 92 after all.
thought of that already, checked fuel pressure when running rough, fuel pressure is at spec. and increases with throttle input. I pulled the fuel filter and could blow through it quite easlily. apperently these engines dont have an egr, so thats out of the question.... this is a weird one and im sad to say im kinda stumped.