Ignition Coil: Testing and Inspection

IGNITION COIL
Inspection:

Primary coil winding:
1. Disconnect the distributor 3-pin connector.




2. Measure the resistance between terminals A and B by using an ohmmeter.

Specification: 0.49 - 0.74 Ohms @ 20 °C (68 °F)

3. If not as specified, replace the distributor.

Secondary coil winding:
1. Disconnect the distributor 3-pin connector.
2. Remove the distributor cap.




3. Measure the resistance as shown in the figure by using an ohmmeter.

Specification: 20 - 31 k Ohms @ 20 °C (68 °F)

4. If not as specified, replace the distributor.