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Home >> Mazda >> 2012 >> 3 Mazdaspeed, 2.3L Eng VIN 4 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [MZR 2.3 DISI Turbo] >> Crankshaft Position (CKP) Sensor Inspection >> Visual Inspection

Visual Inspection

CAUTION:
  • When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing.
  • Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.
  1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO] .)
  2. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI TURBO] .)
  3. Perform the following procedure for easier access.
    1. Remove the aerodynamic under cover No.2. (See AERODYNAMIC UNDER COVER NO.2 REMOVAL/INSTALLATION .)
    2. Remove the front splash shield (RH). (See SPLASH SHIELD REMOVAL/INSTALLATION .)
  4. Disconnect the CKP sensor connector.
  5. Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION .)
  6. Verify that there are no metal shavings on the sensor.
    • If there is a malfunction, remove any metal shavings that are adhering.
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