Engine Misfire Due to Failed Mass Air Flow Sensor or EVAP Purge Valve on Porsche Cayman

A failing mass air flow sensor or EVAP system purge valve can cause engine misfire concerns. Proper diagnoses of engine misfire issues is necessary to correct these issues.

 

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Average mileage: (–)
4 model years affected: 2007, 2008, 2009, 2010
5 people reported this problem
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