911 Carrera 4 Cabriolet AWD F6-3600cc 3.6L SOHC (1990)
Ignition Cable: Description and Operation
The ignition wires consist of a braided steel wire conductor covered with a thick high resistance silicone insulation. They are fitted with a 3K ohm
suppression resistor at the spark plug end of the lead. Ignition leads should always be installed using the proper retainers and routing.