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Old 02-18-2003, 08:34 AM
mbdoc mbdoc is offline
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Only California version cars(1988 & later 300E's) had faults that could turn on the check engine lamp other than the O2 sensor. However if the overvoltage relay is defective the light will stay on BUT the car will be hard to start when it is cold.
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