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Home >> Honda >> 1991 >> Civic Si >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Ignition Checks >> Electronic Ignition System >> Ignition Coil Resistance

Ignition Coil Resistance

  1. Turn ignition off. Remove distributor cap. Remove 2 Phillips screws retaining primary ignition leads to ignition coil. Remove primary leads from ignition coil. Using an ohmmeter, check resistance between primary terminals "A" and "B" on ignition coil. See Fig 1 . Resistance should be .6-.8 ohms at room temperature.
  2. Check secondary resistance between terminal "A" and secondary output terminal (coil tower) at room temperature. See IGNITION COIL RESISTANCE  table. If readings are not within specification, replace coil.
    IGNITION COIL RESISTANCE - Ohms@68°F (20°C)

    Application Primary Secondary
    Civic & CRX .6-.8 9760-14,640
    Fig 1: Identifying Ignition Coil Terminals (Civic & CRX)
    G117893Courtesy of AMERICAN HONDA MOTOR CO., INC.
    TIMING CONTROL SENSOR USAGE

    Application Sensor/System
    TBI TDC/CRANK Sensor
    1.5L & 1.6L (PFI) TDC/CRANK/CYL Sensor
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