[jsgold]

Not sure if you have resolved yet, but here is my advice, and I agree with Maxwedge.. My dad's 89 Olds (2.5) had these problems.Should be same as yours, but not 100% sure. Replaced both the crank sensor and the ignition module, fixed fine. The module can ge tested at most parts places such as NAPA or Advance. The crank sensor is underneath the module, so you have to remove the whole thing anyway so might as well replace it. his was cracked and looked bad, and was cheap to replace. Kind of a pain to get to, had to lift front of car slightly, block up motor and, after unhooking the front motor mount we lowered the car so the engine tilted forward a bit. That helped a bunch. After unplugging the module wiring remove the three bolts holding the module assy, (do not try to take coils off first) then carefully pull the assy out, and be patient as the crank sensor is long and has to clear the hole. Then take the coils off, the crank sensor, and then take the module to be tested.