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1997 993 Wiring Harness

Electrical and Electronic

Vehicle Information: Model: 993; Year: 1997; Body Type: Coupe; Total Mileage: 62000;

I found a problem that may help others. My battery would not hold a charge, replaced 3 times in 9 months. Replaced the alternator 2 months ago because it would not charge. Dead battery again, charge was sometimes 14+V and other times 12.2V. Investigation found an intermittant short in the wiring harnass in the engine compartment between the alternator and the firewall plug. Took 4 hours of shop time to find it.I thought Porsche fixed this with the 95 revision. Not sure if this was a one-off or a defect that is more common as the later cars get older.

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