1991 Ford Bronco Bronco XLT Ignition

...went to start the truck, and it turned over, but no start. with a bit of troubleshooting I discovered I had no spark.

Well I happened to jiggle a few wires in the driver side cluster over the wheelwell and voila it started. So I went merrily along my way.

Now it does it again and lo, no jiggling helps. Now I'm stuck

I've been assuming it's some corroded connectors causing an open ..but...