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Home >> Mazda >> 2018 >> 3 Touring, 4D Hatchback, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Mass Air Flow (MAF) Sensor Inspection >> Visual Inspection
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Visual Inspection

  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
  2. Disconnect the MAF sensor/IAT sensor No. 1 connector.
  3. Remove the MAF sensor/IAT sensor No. 1. (See MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR No. 1 REMOVAL/INSTALLATION .)
  4. Visually inspect the MAF sensor for the following:
    • Damage, cracks, dirt
    • Rusted sensor terminal
    • Bent sensor terminal