When I get the two feet of snow off my car I will pull the distributor cap and take a peek at that. I do not think it has anything to do with that however.
I will call up the Merc dealer by my place and see if they have a crankshaft position sensor. It's not like its a waste if it is not the source of the problem, its bound to fail at some point.

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1991 Mercedes 300TE (Current Girlfriend )
1994 Mazda Miata