Ignition Coil: Testing and Inspection

NOTICE: "Cold" and "Hot" in these 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. No.1 Ignition Coil:





DISCONNECT IGNITION COIL CONNECTOR AND HIGH-TENSION CORD FROM IGNITION COIL
2. No.2 Ignition Coil:
REMOVE IGNITION COIL





3. INSPECT PRIMARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.





Primary coil resistance
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
If the resistance is not as specified, replace the ignition coil.
5. No.2 Ignition Coil:
REINSTALL IGNITION COIL
6. No.1 Ignition Coil:
RECONNECT IGNITION COIL CONNECTOR AND HIGH-TENSION CORD TO IGNITION COIL