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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat
CEL codes PO447 & PO453

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08-14-2010, 10:29 AM	#1
boxsterblack Registered User Join Date: Aug 2010 Location: Wisconsin Posts: 1	CEL codes PO447 & PO453 97 Boxster - Anyone have an idea of what to check for on these codes? I can't pass emissions test and am running out of time. So far it is not the gas cap. I have seen some references on these codes saying the possibility of a bad Eval purge valve or vent valve. Does anyone know where these are?

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