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Home >> Mazda >> 2011 >> 3 Mazdaspeed, 2.3 4 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [L3 With TC] >> Air Fuel Ratio (A/F) Sensor Removal/Installation

Air Fuel Ratio (A/F) Sensor 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. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L3 WITH TC] ).
  2. Disconnect the negative battery cable.
  3. Remove the charge air cooler. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION ).
  4. Remove the charge air cooler bracket. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION ).
  5. Disconnect the A/F sensor connector.
  6. Remove the A/F sensor using the SST.
  7. Install in the reverse order of removal.
    Fig 1: A/F Sensor Using SST With Torque Specifications
    G07868476Courtesy of MAZDA MOTORS CORP.
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