Travis Conlon

So I have a 96 camaro lt1 all of a sudden i have no spark at the coil it has power I've check all of the harness and wires for the right voltage everything is doing exactly what it is supposed to do but no spark. Ive changed the opti, coil, icm, ECM. The only problem I could find is on the opti harness fro. The computer on terminal d when I check the ohms it says its supposed to be between 0-0.2ohms of resistance but mine just slowly climbed to like 7.5 ohms and so.etimes higher is this bad and what would cause the issue.