Ignition Coil: Testing and Inspection

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 500C (122°F)
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.



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

COLD: 0.36 - 0.55 0hms
HOT: 0.45 - 0.65 Ohms

- If the resistance is not as specified, replace the ignition coil.

4. INSPECT SECONDARY COIL RESISTANCE.



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

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.