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Ignition Coil Resistance (Spectrum)

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  1. Remove distributor cap and rotor. Remove primary leads from ignition coil. Using ohmmeter, check resistance between primary terminals of coil. See Fig 1 .
  2. Check secondary resistance between coil secondary terminal and primary positive terminal. Replace coil if readings are not within specifications. See IGNITION COIL RESISTANCE table.
Fig 1: Spectrum Ignition Coil Resistance Check (Prizm Is Similar)
G121594Courtesy of GENERAL MOTORS CORP.
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