The spark plug cap is a separate part from the coil wire, so yes, it is possible for it to be disconnected (that's what you have to do if you are replacingthe spark plug cap). I would suggest snipping just a mm or 2 off the end of the coil wire so you have clean metal, and then screw the spark plug cap down good and tight onto the wire - might try cleaning the inside of the plug cap with contact cleaner first too, assuming your cap is good, just to make better contact.
I hope that helps.
-Jim
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-Jim
'93 MC21