The intercooler pump is isolated away from that circuit by a relay, so if the pump were bad, it would blow the fuse that is inline to the relay, and not the ignition coil fuse.
No, it is not "normal" to disconnect the wire from the radio capacitor, but i want you to do that and fire up the car and do a very short test drive to see jif the fuse blows. If it still does, then the issue may a bad coil (not very likely as these things are pretty robust), or something else entirely that i just cant think of right at the moment.