Replaced ICM and coil , starter cranks engine, but no spark. The repair manual is vague about location of fuses , fusible links. What does a failed fusible link look like? Do any of the fuses under the dash control the ignition? There are a lot of small , plug-in modules in the engine compartment wiring harness, are any of these fuses or controllers ? I'm doing that inept mechanic approach of replacing things till it works. Is there something else I should check?