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-   -   please help me, 1987 300d no tachometer, rough idle, but i have ac and abs (http://www.peachparts.com/shopforum/showthread.php?t=297133)

naser 04-09-2011 10:42 PM

please help me, 1987 300d no tachometer, rough idle, but i have ac and abs
 
the only way to fix it is by removing the overload protection rely then plug it in, at that time the engine will come out of sick mode for a second then it will go bach in rough idle:confused:

babymog 04-11-2011 09:37 AM

It sounds like a classic OVP relay failure, have you tried a new one?


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