CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [L8, LF]

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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.

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•  If not within the specification, inspect the plate projections for cracks or bending.
―  If there is any malfunction, replace the crankshaft pulley. (See ENGINE REMOVAL/INSTALLATION [L8, LF].)
Air gap
0.5—1.5 mm {0.02—0.05 in}


Visual inspection

1.  Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L8, LF].)

2.  Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [L8, LF].)

3.  Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [L8, LF].)

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

•  Remove any metal shavings that are adhering.


Voltage Inspection

1.  Idle the engine.

2.  Measure the CKP sensor output wave pattern using an oscilloscope. (See PCM INSPECTION [L8, LF].)

•  If not within the specification, replace the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [L8, LF].)