The German automaker Porsche produced the 928 model from 1977-1995. It is very well designed with 2-door coupe body style and equipped with 4.5L-5.4L V8 engine producing up to 360HP power. It is also equipped with LH jet control box design as well as synchromesh gearbox resulting excellent car performance.

Porsche 928 1985 system component and their connection can be found on the following figure. It show the electrical connection for vehicle system components : RPM and reference mark transmitter, control unit, injection valves, intake air temperature sensor, air volume meter, ignition switch, buzzer contact, throttle valve switch, tester, oxygen sensor, idle speed regulator, starter, cable connector, ignition coil, trigger unit, and many more. Here is the circuit :

1985 Porsche 928 Wiring Diagram (click to enlarge)