Rich running on 200E 1997cc 1990 - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 06-24-2005, 01:48 PM Thread Starter
BenzWorld Newbie
Date registered: Jun 2005
Location: Disley, Stockport, Cheshire, North West U.K.
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Rich running on 200E 1997cc 1990

I have just built and fitted an engine into a 200E car, 1997cc 1990 manufactured, that I am giving as a gift to my 75 year old brother. The engine has been fine for testing for 230 miles, then suddenly runs very rich, as if I have lost the mixture control. I have fitted a new coolant temperature sensor that I believe supplies the control pressure device on the fuel distributor, the single contact one in the front of the head. But I do not know how to find out what component is causing the VERY rich running and black smoke. It happened just like throwing a light switch.

ANy ideas / help please.
Philtheengineman is offline  
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