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Cylinder Identification Sensor

  1. Cylinder identification sensor is wrapped around No. 6 spark plug wire, near distributor cap. Check sensor and pick-up general condition. Electrical contacts must be clean and tight. Check that sensor plugs are not reversed. Plugs are color coded for identification.
  2. Ensure ignition is off. Unplug sensor connector. Check resistance across sensor connector terminals. See CYLINDER IDENTIFICATION SENSOR RESISTANCE table. Connect ohmmeter between each sensor terminal and engine block. Ohmmeter should not show continuity. Replace sensor, if faulty.
CYLINDER IDENTIFICATION SENSOR RESISTANCE

Application Ohms
All Models 0.2-1.0
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