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Home >> Chrysler >> 1982 >> Imperial >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Electronic Spark Control System >> Testing >> Ignition Coil Resistance Checks

Ignition Coil Resistance Checks

  1. If ignition coil is suspected, connect ohmmeter leads to positive and negative primary terminals. Ignition switch should be "OFF" and coil wires removed. Primary resistance should read 1.60-1.79 ohms for Prestolite coils; 1.34 to 1.55 ohms for Essex coils.
  2. Then move ohmmeter leads to coil negative terminal and coil tower. Ohmmeter resistance reading should be 9, 400-11, 700 for Prestolite coils, 9, 000-12, 200 ohms for Essex coils.
  3. Replace ignition coil if either specification is not obtained.
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