Ignition Coil: Testing and Inspection

Ignition Coil

NOTICE: "Cold" and "Hot" in the following sentences express the temperature of the coils themselves.
"Cold" is from - 10°C(14°F) to 5O°C(122°F) and
"Hot" is from 50°C (122°F) to 100°C (212°F).

1. DISCONNECT DISTRIBUTOR CONNECTOR
2. REMOVE DISTRIBUTOR CAP AND ROTOR
3. REMOVE IGNITION COIL DUST COVER
4. INSPECT PRIMARY COIL RESISTANCE





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

Primary coil resistance:
Cold: 0.36 - 0.55 Ohm
Hot: 0.45 - 0.65 Ohm

- If the resistance is not as specified, replace the ignition coil.
5. INSPECT SECONDARY COIL RESISTANCE





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

Secondary coil resistance:
Cold: 9.0 - 15.4 k Ohm
Hot: 11.4 - 18.1 k Ohm

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