Engine misfire or excess fuel consumption can damage catalytic converter on Porsche 911

If engine misfiring, rough running, or fuel consumption issues are not resolved quickly, the catalytic converter can overheat and fail.

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Average mileage: 63,200 (63,200–63,200)
10 model years affected: 1990, 1991, 1992, 1993, more1994, 1995, 1996, 1997, 1998, 2002
10 people reported this problem
1 person shared problem details
Misfires in 1,2, 3 codes 300 ,301,302,303
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