The Porsche 928, a distinguished grand tourer produced for the USA market in 1980, represents a significant chapter in the brand's history. This front-engine, rear-drive V8-powered vehicle, featuring a unique transaxle layout, was engineered with a focus on performance, luxury, and advanced technology for its era. Its distinctive design and 4.5-liter V8 engine, producing 219 horsepower, offered a blend of comfort and dynamic capability, competing with other European luxury coupes. Recognized for its innovative engineering, the 928 was awarded European Car of the Year in 1978 and remains a highly regarded modern classic.

This comprehensive electrical system manual is designed to provide detailed guidance for the maintenance, diagnosis, and repair of the Porsche 928's electrical components. It covers a wide array of systems, including ignition, fuel injection, lighting, instrumentation, and various power accessories, offering current flow diagrams and step-by-step troubleshooting procedures. The manual is an essential resource for owners, mechanics, and technicians, enabling accurate identification and resolution of electrical faults, ensuring the continued optimal performance and reliability of this iconic vehicle.