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Home >> Mazda >> 2012 >> 2 Touring, 1.5L Eng VIN Y, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [MZR 1.5] >> Heated Oxygen Sensor (Ho2S) Removal/Installation
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Heated Oxygen Sensor (Ho2S) Removal/Installation

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. Disconnect the negative battery cable.
  2. Remove the air cleaner cover. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  3. Disconnect the HO2S connector.
  4. Remove the HO2S using the SST.
    Fig 1: Locating HO2S With Torque Specifications
    G08107428
  5. Install in the reverse order of removal.