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Crankshaft Position Sensor: Service and Repair




CKP Sensor Replacement

1. Move the auto-tensioner to remove tension from the drive belt, then remove the belt.
2. Remove the crankshaft pulley.
3. Remove the upper and lower timing belt covers from the engine.




4. Remove the CKP sensor A/B (A) from the oil pump.
5. Install the sensor in the reverse order of removal.
6. Clear the CKP pattern with HDS.
7. Do the CKP pattern learn procedure below.

CKP PATTERN CLEAR/CKP Pattern Learn Procedure

Enable Criteria

ECT at 176 °F (8O °C) or higher.

Procedure

1. Clear the CKP Pattern with the HDS while the engine is stopped.
2. Turn the ignition OFF.
3. Turn the ignition ON (II), and wait for 30 seconds.
4. Test-drive the vehicle on a level road: Decelerate (with the throttle fully closed) from an engine speed of 2,500 rpm to 1,000 rpm with the A/T in 2, or the M/T in 2nd or 3rd gear.
5. Stop the vehicle. Do not turn the ignition off.
6. Select the ALL DATA LIST in the DATA LIST MENU of the HDS.
7. Check the status of PULSER F/B LEARN. If it is set to NG, the enable criteria was probably not met;repeat the procedure from the beginning.
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