You say you swapped the HV coil, but did you swap the ICM at the same time????? The ICM is the ignition computer and sits right under the HV coil.
It is time to pull out a volt-ohm multimeter and start checking wires for continuity and voltages. As I recall with the power on, engine off there should be 5 volts on one of the yellow wires leading to the ICM just under HV coil. While cranking that voltage drops out for a split second under a command from the ECU (in another wire) and the voltage drop fires the HV coil.
According to my E-drawing the black wire at the ICM is a ground, check it on ohms scale of your meter, should be less than 1 ohm from there to the battery ground (-) post. There are two yellow wires from the ECU, one looks to be a 12 volt signal that goes through the fuel pump relay first, then to the ICM, the other should be 5 volts IIRC. See if one of them has 12 volts, and make sure the fuel pump is turning on. The green/white wire seems to be the tachometer signal from the ECU which should be based on the CPS signal to the ECU. It should look like an AC signal, low voltage, under 5 volts of some sort. THe CPS signal is just under 1 volt and should show up on an AC meter setting at just under 1 volt AC IIRC.
In summary, your problem must be bad wiring or bad parts from the CPS to the ECU to the ICM, or no power the ECU or ICM (The 88 ECU rarely dies) itself???
There are 2 diagnostic connectors on the passenger side fender well towards the rear where you can monitor the ECU and sensor wire voltages and grounds!!!! Get a copy of the Renix Fuel injection manual it shows which pins to check!!!