2012 Mazda 6 i Touring PlusFACTORY OEM SERVICE PROCEDURE

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 crankshaft position 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. (ATX) (See DRIVE SHAFT REMOVAL/INSTALLATION .)
    3. Remove the cylinder block lower blind plug and install the SST  .
      Fig 1: Identifying SST (303-507)
      G08140793
    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 Position On Pulse Wheel
    G08140794
  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 Specification
    G08140795
  5. Remove the SST  then install the cylinder block lower blind plug.
    Fig 4: Cylinder Block Lower Blind Plug With Torque Specification
    G08140796
  6. Install the drive shaft (RH). (ATX) (See DRIVE SHAFT REMOVAL/INSTALLATION .)
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.