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Home >> Mazda >> 2021 >> MX-5 Miata Club, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Camshaft Position (CMP) Sensor Inspection >> Intake CMP Sensor >> Visual inspection
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Visual inspection

CAUTION:
  • When replacing the intake CMP sensor, make sure there is no foreign matter on it such as metal shavings. If it is installed with foreign matter, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Remove the following parts:
    1. Seal cover (See SEAL COVER REMOVAL/INSTALLATION .)
    2. Front suspension tower bar (Vehicles with front suspension tower bar) (See FRONT SUSPENSION TOWER BAR REMOVAL/INSTALLATION .)
    3. Intake manifold (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
  3. Disconnect the intake CMP sensor connector.
  4. Remove the bolt. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION .)
  5. Remove the intake CMP sensor. (See CAMSHAFT POSITION (CMP) SENSOR REMOVAL/INSTALLATION .)
  6. Verify that there are no metal shavings on the intake CMP sensor.
    • If there is a malfunction, remove any metal shavings that are adhering.