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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat
are idle control valves known to rattle?

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09-02-2016, 07:12 PM	#5
lkchris Registered User Join Date: Jan 2014 Location: Albuquerque, NM, USA Posts: 744	The name of these things causes confusion. Their purpose is to provide extra air when the injection is rich during warmup of a cold started engine. It's the modern day equivalent of a fast idle cam. After that short period, they are inactive. If it's activating at other times, it's defective and/or the sensor controlling it is. __________________ Kent Christensen Albuquerque 2001 Boxster 2007 GL320 CDI, 2010 CL550 2 BMW motorcycles

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