Thanks again for all the responses.

After doing some more research we think we will begin by having the throttle actuator cleaned. My husband replaced the fuel pressure regulator this summer. It was better for a few days and we thought the problem might be solved...but then things went back to acting up and even got worse.

Italianbenz, would that still be consistent with the throttle actuator and do you think cleaning it will help at all? Is the replacement a DIY job?

MB FRAU

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Joint Owner of:
'93 400E (80k miles)
- Smoke Silver/Parchment
'93 300CE Cabriolet (43K miles)
-Midnight Blue/Parchment