Does anyone have any suggestions on where to start?

When I start it cold it runs very rich. It runs great and has plenty of power when warmed-up.

It got a top end rebuild and tune-up six month ago, new ignition module, clean air filter, cannot find any vacuum leaks (but how can you be sure?).

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R. Downs
1985 500SEL (260,000 miles) SOLD!
1974 280 SOLD!
1994 Volvo 850 Turbo Wagon (Yuppie Ice Sled)

"I know I have a Benz and they know it too." If you start bragging about it or shoving in people's face, you then become a Wally; especially to the girls.