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Home >> Honda >> 1979 >> Prelude Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> HITACHI Electronic Ignition >> Testing >> Ignition Coil >> Primary Resistance Test

Primary Resistance Test

Turn ignition off. Remove positive and negative wires from coil. Connect an ohmmeter probe to each primary terminal. Resistance should be 1.78-2.08 ohms at 70°F (21 °C).