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Home >> Mazda >> 2012 >> 3 s Sport, 2.5L Eng VIN 9, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System [MZR 2.0, MZR 2.5] >> Crankshaft Position (CKP) Sensor Removal/Installation >> Installation

Crankshaft Position (CKP) Sensor Removal/Installation: Installation

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. Perform the following procedure so that cylinder No.1 is at TDC.
    1. Remove the wheel and tire (front right side).
    2. Disconnect the drive shaft (RH) from joint shaft, set the drive shaft (RH) out of the way. (MTX) (See DRIVE SHAFT REMOVAL/INSTALLATION .)
    3. Remove the cylinder block lower blind plug and install the SST 
      Fig 1: Identifying SST 303-507
      G08155412
    4. Rotate the crankshaft pulley clockwise until the crank weight contacts the SST  so that cylinder No.1 is at TDC.
  2. Fit the center of the CKP sensor with the fifth tooth (counting counterclockwise from the empty space A as shown in the figure) of the pulse wheel.
    Fig 2: Identifying CKP Sensor Installation With Reference Of Pulse Wheel
    G08155413
    CAUTION:
    • If the line is not accurately drawn, ignition timing, fuel injection and other engine control systems will be adversely effected. Draw the straight line carefully using a straight edge.
  3. Align the center line of the CKP sensor and the line drawn in Step 2, then install the sensor.
  4. Install the CKP sensor fitting bolts.
    Fig 3: CKP Sensor Fitting Bolts With Torque Specifications
    G08155414
  5. Remove the SST  then install the cylinder block lower blind plug.
    Fig 4: Cylinder Block Lower Blind Plug And CKP Sensor With Torque Specifications
    G08155415
  6. Install the drive shaft (RH). (MTX) (See DRIVE SHAFT REMOVAL/INSTALLATION .)
  7. Install the wheel and tire (front right side).