CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [L3 Turbo]
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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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Visual Inspection
1. Remove the battery cover. (See BATTERY REMOVAL/INSTALLATION [L3 Turbo].)
2. Disconnect the negative battery cable.
3. Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION [L3 Turbo].)
4. Verify that there are no metal shavings on the sensor.
Voltage Inspection
1. Idle the engine.
2. Measure the CKP sensor output wave pattern using an oscilloscope. (See PCM INSPECTION [L3 Turbo])