Crankshaft Position (CKP) Sensor

CKP sensor is located on front of engine, near crankshaft pulley. Disconnect CKP sensor connector. Using ohmmeter, measure resistance between terminals "A" and "B" at CKP sensor. See Fig 1 . Resistance should be as specified. See CRANKSHAFT POSITION SENSOR RESISTANCE table.
If resistance is not as specified, replace CKP sensor. On Millenia 2.3L, when installing CKP sensor, adjust air gap to .040-.080" (1.0-2.0 mm). On all models except Millenia 2.3L and MPV, when installing CKP sensor, adjust air gap to .020-.060" (.5-1.5 mm). MPV has no air gap specification.

CRANKSHAFT POSITION SENSOR RESISTANCE

Application

⁽¹⁾ Ohms

Protege

500-600

Miata

⁽²⁾

Millenia 2.3L

950-1250

Millenia 2.5L & 626

520-580

MPV

315-385

⁽¹⁾	With sensor temperature at 68°F (20°C).

⁽²⁾	Information not available from manufacturer.

Fig 1: Checking Crankshaft Position Sensor Resistance (Typical)

Courtesy of MAZDA MOTORS CORP.