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Home >> Mazda >> 2007 >> 3 Mazdaspeed, 2.3 M >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (L3 With TC) >> Heated Oxygen Sensor (Ho2S) Removal/Installation >> Notes
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Heated Oxygen Sensor (Ho2S) Removal/Installation: Notes

WARNING:
  • A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.
  1. Remove the battery cover.
  2. Disconnect the negative battery cable.
  3. Remove in the order indicated in the table.
  4. Install in the reverse order of removal.
    Fig 1: Removal/Installation Of Heated Oxygen Sensor With Torque Specification
    G04955361Courtesy of MAZDA MOTORS CORP.