Oldsmobile/Buick Repair: Ignition Control module, olds achieva, changeing

Question
I have a 1994 Olds Achieva, 4cyl 2.3 engine. While driving car it just died. I was told it was the ignition control module, so I replace it with a used part. Car started right away with replacement part. I drove about 4 miles and car died again. I then replaced the module with another part. Car started immediately, then within a minute or so, it died again. Could you tell me what else can be causing this problem or what else can I check before giving up on this car. Thanks

Answer
HI MICHELLE,MY GUESS IS UNPLUGGING THE MODULE WOULD GET THE SAME RESULTS AS CHANGEING IT.SO THIS TELLS ME THAT SOMETHING THE MODULE RUNS IS THE PROBLEM.SO THE MODULE CONTROLS SEVERAL FUNCTIONS SUCH AS SPARK TO THE ENGINE INJECTOR OPERATION .HERE IS WHERE YOU START AND WITH A QUAD 4 THIS IS DIFFICULT.BUT FIND OUT IF YOU HAVE FIRE AT THE PLUGS WHEN IT DON,T START IF YOU DO MODULE IS NOT THE PROBLEM.NOW YOU HAVE TO FIND OUT IS THE ENG GETTING FUEL.THERE IS A VALVE ON THE FUEL RAIL ,LOOKS KINDA LIKE A VALVE STEM ON A TIRE.YOU SHOULD HAVE A min OF 40 PSI OF FUEL PRESSURE.MOST OF THE TIME IN THIS VEHICLE IS A FUEL PUMP PROBLEM GOOD LUCK HOPE THIS HELPS IF YOU HAVE MORE QUESTIONS PLEASE FEEL FREE.AND PLEASE RATE MY HELP TY BILLYMAC