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Old 12-27-2012, 02:14 PM   #3
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Join Date: Dec 2012
Location: East coast
Posts: 1,161
My Ride: BMW
Well I think the rough idle could be a number of things. Maybe the pre-cat o2 sensor if the check engine light came on. Or maybe check and see if the throttle body is very dirty. Also might want to check the vacuum lines for leaks.

Last edited by GDubois; 12-27-2012 at 02:16 PM.
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