Ignition Coil: Testing and Inspection
IGNITION COIL INSPECTIONNOTICE: 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.
- Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
Primary coil resistance: (Cold): 0.21 - 0.33 0hms
Primary coil resistance: (Hot): 0.27 - 0.39 0hms
- 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.
Secondary coil resistance (Cold): 6.4 - 11.1 kOhms
Secondary coil resistance (Hot): 8.2 - 13.0 kOhms
- If the resistance is not as specified, replace the ignition coil.
5. RECONNECT HIGH-TENSION CORD TO IGNITION COIL.
6. RECONNECT IGNITION COIL CONNECTOR.