Suzuki: 1990 Suzuki Sidekick, suzuki sidekick, fuse

Question
My ignition coil meter fuse keeps blowing on my 1990 sidekick. We have isolated each item connected to that fuse and disconnected each item one at a time but have not been able to determine what is causing the fuse to blow. Other than rewiring the whole harness do you have any ideas how to determine the problem?

Answer
Look at the fuse value, and then measure the amp draw of each separately.  Many times as a device ages it will use more current.  If the total (just add all the values) is, for example, 18 amps, and he fuse is 20, it could well blow after running for a while.  I would want the fuse to be 125% of the normal current consumption, if not higher.