Air Gap Inspection

Verify that the CKP sensor is securely installed.
Using a thickness gauge, measure the air gap between the plate projections at the back of crankshaft pulley and the CKP sensor.
- If not within the specification, inspect the plate projections for cracks or bending.
  - If there is any malfunction, replace the crankshaft pulley. (See FRONT OIL SEAL REPLACEMENT ).
  CKP sensor air gap 0.5-1.5 mm {0.02-0.05 in}
  
  Fig 1: Measuring Air Gap Between Plate Projections At Back Of Crankshaft Pulley And CKP Sensor
  Courtesy of MAZDA MOTORS CORP.