CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5]

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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.

•  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 [MZR 1.8, MZR 2.0, MZR 2.5].)

Visual Inspection

Caution

•  Water penetrating the connector will cause sensor malfunction. To prevent this, be careful not to damage the wiring harnesses or the waterproof connector so as to cause water penetration.

1.  Idle the engine.

2.  Measure the crankshaft position signal and verify that rectangular waves are produced. (See PCM INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].)

3.  If not as specified, replace the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].)

Voltage Inspection

1.  Idle the engine.

2.  Measure the CKP sensor output wave pattern using an oscilloscape. (See PCM INSPECTION [MZR 1.8, MZR 2.0, MZR 2.5].)

•  If not within the specification, replace tha CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [MZR 1.8, MZR 2.0, MZR 2.5].)