1. The ECU gets a signal from the CAS, and then calculates when to fire the spark. The calculation uses information from several other sensors to determine the firing point. The ECU expects the signal at a certain degrees BTDC. The correct degrees is when the idle timing is set correctly. So, NO, you can't set idle timing using consult.
2. There should be a black loop of wire on the connector to the ignitor module (power transistor unit), just before the loom disappears inside the valley cover (the one covering the coils).