Ignition Coil: Testing and Inspection

IGNITION SYSTEM

ON-VEHICLE INSPECTION

INSPECT IGNITION COIL
a. Remove the air cleaner hose.
b. Disconnect the high-tension cords and ignition coil connectors from the ignition coils.




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

Primary coil resistance:
- Cold 0.67 - 1.05 Ohms
- Hot 0.85 - 1.23 Ohms

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

d. Remove the ignition coils.




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

Secondary coil resistance:
- Cold 9.3 - 16.0 Ohms
- Hot 11.7 - 18.8 Ohms

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

f. Install the ignition coils.
g. Connect the ignition coil connectors and high-tension cords.
h. Install the air cleaner hose.