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

Problem Description and Possible Solution

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.

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