Do a search on "hall effect sensor." I think that you will find that a defective HES is sometimes responsible for the symptons that you describe.

You also may want to, if you have not done so already, check your distributor cap.

good luck

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1989 300TE "Alice"
1990 300CE "Sam Spade"
1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007)
1998 E320 "Orson"
2002 C320 Wagon "Molly Fox"

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