The '88 had a Hall effect impulse generator in the bottom of the distributor that initiated the spark. A common problem with those was that the wire that went out through the coil housing disintegrated. The insulation degraded and the wire oxidized, sometimes exacerbated by metal fatigue in the wire from engine vibration. Because that is a very weak, low voltage signal at that point in the circuit, the wire and insulation have to be perfect for it to initiate spark.
According to the parts list, in '88 it looks like they went to a removable impulse/pickup coil rather than the earlier pressed-in unit with the wire permanently attached You probably cannot buy that wire, but you may be able to rebuild it for just a few cents with some patience and a soldering iron.
If that is not the problem, I would next suspect the coil.
Also, I think that the '88 may have still had a main fuse under the hood, driver side inner fender. That fuse housing may no longer be very waterproof. Check it for corrosion and heat damage.