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Home >> Mazda >> 2021 >> 6 Touring >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN M) >> Air Fuel Ratio (A/F) Sensor Removal/Installation >> Notes
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Air Fuel Ratio (A/F) Sensor 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.
CAUTION:
  • Do not allow flammable objects such as the taping for bundling a wiring harness to come into contact with the exhaust manifold and silencer.
G12184559Courtesy of MAZDA MOTORS CORP.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Disconnect the A/F sensor connector.
  3. Remove the clip from the heat insulator.
    G09758741Courtesy of MAZDA MOTORS CORP.
  4. Remove the wiring harness from the wire clip A and B. (See ASSEMBLY OF WIRING HARNESS TO WIRE CLIP NOTE .)
    G09758742Courtesy of MAZDA MOTORS CORP.
  5. Remove the A/F sensor using the SST.
    Fig 1: Air Fuel Ratio Sensor Components With Torque Specification (With Cylinder Deactivation)
    G12184562Courtesy of MAZDA MOTORS CORP.
  6. Install in the reverse order of removal.