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Home >> Ford >> 1988 >> Bronco II 4WD, Standard, M5OD-R1 >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - DURA-Spark II >> Testing >> Ignition Coil Primary Resistance
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Ignition Coil Primary Resistance

Disconnect ignition coil connector. Connect ohmmeter leads to "BATT" and "TACH" terminals of ignition coil. If resistance is .8-1.6 ohms, coil is okay. Proceed to PRIMARY CIRCUIT CONTINUITY  test. If resistance is less than .8 or greater than 1.6 ohms, replace ignition coil. After test, connect ignition coil connector.