Ports for secondary air flow may clog at cylinder head/cam housing area on Porsche 911

Ports and passages for secondary air flow can clog at the cylinder head/cam housing area. Partial engine disassembly may be required to fix the problem.

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Average mileage: (–)
Engine affected: 6 Cylinder
6 model years affected: 1993, 1994, 1995, 1996, more1997, 1998
6 people reported this problem
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