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Misfire due to failed mass air flow sensor or failed purge valve on Porsche 911

Problem Description and Possible Solution
A failing mass air flow sensor or EVAP purge valve can cause misfire issues.
Problem Data
RepairPal Verified
Average mileage: (–)
12 model years affected: 1999, 2000, 2001, 2002, more2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
12 people reported this problem