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].)