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Ignition Coil: Testing and Inspection


Testing Ignition Coil Primary Windings:






1. Inspect primary coil resistance. Using an ohmmeter. measure the resistance between the positive (+) and negative (-) terminals.

Primary coil resistance (Cold): 0.36 - 0.55 ohms

Primary coil resistance (Hot): 0.45 - 0.65 ohms

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

Testing Ignition Coil Secondary Windings:






2. Inspect secondary coil resistance. Using an ohmmeter, measure the resistance between positive (+) and high-tension terminals.

Secondary coil resistance (Cold): 9.0 - 15.4 k ohms

Secondary coil resistance (Hot): 11.4 - 18.1 k ohms

If the resistance is not as specified, replace the Ignition Coil.