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Home >> Mazda >> 2004 >> RX-8 1.3 3 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Front Heated Oxygen Sensor (Ho2S) Inspection >> Circuit Open/Short Inspection >> Notes
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Circuit Open/Short Inspection: Notes

  1. Disconnect the PCM connector.
  2. Disconnect the front HO2S connector.
  3. Inspect the following wiring harnesses for open or short circuit. (Continuity inspection)
    Fig 1: Identifying Front HO2S Connector
    G03702086Courtesy of MAZDA MOTORS CORP.
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