Recently, my 91 80 series doesn't want to start. Turning the key results in a click (kind of like a solenoid opening/closing noise) but nothing else. No cranking, no starting. I don't believe that this is the infamous EFI relay. I took care of that problem a few years back. (Plus, the symtom of a bummed EFI relay is it will crank, but not start.) Anyone have any ideas. This happens on occasion. Other times it fires right up. ???