Ignition Coil: Testing and Inspection
PROCEDURENOTE: 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. Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
Primary Coil resistance (Cold): 0.36 - 0.55 Ohms
Primary Coil resistance (Hot): 0.45 - 0.65 Ohms
If the resistance is not as specified, replace the Ignition Coil.
4. Using an ohmmeter, measure the resistance between the positive (+) and high-tension terminals.
Secondary Coil resistance (Cold): 9.0 - 15.4 k ohms
Secondary Coil resistance (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.