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Old 06-09-2003, 11:30 AM
sbourg sbourg is offline
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
It seems odd that your car idles at different speeds in park and drive. In our 190E 2.3, the ECU adjusts the idle air valve to keep the speed constant - but with a momentary overshoot. Unplug the valve at idle to see if it is even working.

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