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Old 06-26-2017, 03:35 AM   #9
jcslocum
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Join Date: Aug 2015
Location: Eastern Shore, MD
Posts: 623
If you have a vacuum leak in the booster/servo it may be leaning out the idle enough to cause the idle drop.
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Jon
1966 912, 1976 911
1986 944, 2000 Boxster
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