Thread: Rough cold idle on 1991 420SEL
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  #4  
Old 05-15-2001, 10:31 PM
rudy rudy is offline
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Join Date: May 1999
Location: New Location: VA Palo Alto HEALTH CARE SERVICES
Posts: 109
check your ICU (ignition control unit), ...after I replace this baby, ...the system works fine. Hope this helps..
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