CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [ZY, Z6]

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Visual inspection

1.  Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [ZY, Z6].)

2.  Disconnect the negative battery cable.

3.  Remove the under cover.

4.  Remove the splash shield (RH). (See SPLASH SHIELD REMOVAL/INSTALLATION.)

5.  Disconnect the CKP sensor connector.

6.  Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [ZY, Z6].)

7.  Verify that there are no metal shavings on the sensor.

•  Remove any metal shavings that are adhering.

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.

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

―  If not within the specification, replace the crankshaft pully. (See FRONT OIL SEAL REPLACEMENT [ZY, Z6].)

Voltage Inspection

1.  Idle the engine.

2.  Measure the CKP sensor output wave pattern using an oscilloscope. (See PCM INSPECTION [ZY, Z6])

•  If not within the specification, replace the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [ZY, Z6].)