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
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problem details
Misfires in 1,2, 3 codes 300 ,301,302,303