Just what do you suppose the basis for his “inconsistent spark” statement is? The OP doesn’t really know what he is talking about - or maybe you didn’t notice that he was looking for a distributor for a car that doesn’t have one? Or maybe you didn’t notice that he had his OBDII codes read but didn’t actually report the codes?
Aside from that - as I already said - there is no code reading procedure that’s going to tell you that you have an inconsistent spark. Or maybe you think that the lackey behind the counter at the auto parts store whipped out his pocket oscilloscope and checked out the actual ignition signal traces? Or used his extra-special x-ray glasses to watch the spark plug through the cylinder head while the car ran?