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The pick up coil is much more likley to be bad then the ASD relay, check for power to the coil on the + side when you first turn the key on should power up for 3 seconds if you have power there the ASD is working properly. the fuel pump and coil are powered by the ASD but the computer will not turn it on if it does not see a signal from the pick up coil while cranking.

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Incorrect. The computer will prime the fuel pump even before you start cranking. When you put the key to the run(but not crank) position you should hear the fuel pump for a few seconds. The pickup fires off the injectors and you are right in that the fuel pump will not continue to run past the 3 second prime if there's no signal from the pickup in the distributor, but it will still prime when you turn the key to run. It will only try to prime a set amount of time per start cycle but I don't remember how many times that is. Maybe 5 or 6 times if memory serves.

The older years had the ASD relay built into the ECU but by 1990 it was a seperate relay. On the cars at least it's around the drivers side strut tower area. Not sure about the minivnas.

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