Air Gap Inspection

1. Verify that the CKP sensor is securely installed.
2. Using a thickness gauge, measure the air gap between the plate projections at the back of crankshaft pulley and the CKP sensor.

Courtesy of MAZDA MOTORS CORP.

• If not within the specification, inspect the plate projections for cracks or bending.

• If there is a malfunction, replace the crankshaft pulley. (See FRONT OIL SEAL REPLACEMENT .)

CKP sensor air gap 

0.5-1.5 mm {0.02-0.05 in}