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911 sc ignition


Vehicle Information: Year: 1979; Body Type: Coupe;

I had my car at the body. Shop called when done and said car would not start. Car would turn over but no spark and no whine from cd box. Porsche shop said cd box dead and alternator dead - very odd. Replaced cd box with permatune unit and alternator with valeo unit. The car now runs really bad when cold (bogs down, kicks, backfires, etc.). As far as I know fuel mix and timing was not touched so only change is (or shuld be)alternator and permatune. Thoughts?

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