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Porsche 928 Problems

Faulty igntion system causing misfire detection system to reduce engine power on Porsche 928

Problem Description and Possible Solution

The ignition system must be maintained—distributor caps, rotors, and cables require attention. The misfire detection system can cause the engine to shut down by half. The root cause of the problem must be ascertained before repair.

(5 people reported this problem)

Porsche 928 Vehicles With This Problem

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Average mileage: (–)
Engines affected: 5.0L V8, 5.4L V8
5 model years affected: 1990, 1991, 1993, 1994, more1995
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