90 Quattro 20V L5-2309cc 2.3L DOHC (7A) (1990)
Ignition Cable: Testing and Inspection
1.
Visually inspect wires and connectors. Replace any wires or connectors that show signs of arcing or are physically damaged.
2.
Disconnect ignition wires at both ends and check resistance as follows:
Fig. 16 Ignition Cable Resistance Test
COIL WIRE
RESISTANCE:2000 +/- 800 ohms
SPARK PLUG WIRES
RESISTANCE:6000 +/- 1400 ohms
If resistance is not within specification, check individual components.
Fig. 17 Spark Plug Connector
SPARK PLUG CONNECTORS
RESISTANCE:5000 +/- 1000 ohms
IGNITION WIRES (without connectors)
RESISTANCE:1000 +/- 400 ohms
If resistance is greater than specified for any wire or connector, replace it.