California Vehicles

IGNITION COIL INSPECTION
NOTICE:"Cold" and "Hot" in the following sentences express the temperature of the coils themselves. Cold is from -10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).
1. Disconnect ignition coil connector.
2. Disconnect high-tension cord from ignition coil.
3. Inspect primary coil resistance.

Ignition Coil Primary Winding Inspection:

- Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
Primary winding resistance:

Cold: 0.36 - 0.55 Ohms
Hot: 0.45 - 0.65 Ohms
^ If the resistance is not as specified, replace the ignition coil.
4. Inspect secondary winding resistance.

Ignition Coil Primary Winding Inspection:

- Using an ohmmeter, measure the resistance between the positive (+) and high-tension terminals.

Secondary coil resistance:
Cold: 9.0 - 15.4 k Ohms
Hot: 11.4 - 18.1 k Ohms
^ If the resistance is not as specified, replace the ignition coil.
5. Reconnect high-tension cord to ignition coil.
6. Reconnect ignition coil connector.