I have been trying to troubleshoot this car for months.I replaced the B18A engine with a rising sun b18A.New main relay,Distributer,and engine wiring harness.When i turn the engine over the plugs get no spark,then the ECU reads code 15 with one long blink and 5 short ones.So i was told it is the ignition switch and to try to hot wire it .So i reset the ECU and try to start it by hot wiring the White and Black wire with white stripe off the ignition,still no spark and ECU then flashes code 15 again.So then what is next.Does this mean the ignition switch is okay?I have replaced the ignitor and coil to no avail.Any thoughts?