SERVICE MANUAL
  Applies to: Hyundai Coupe/Tiburon 1998-2000
GROUP
Fuel System MFI Control System
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KNOCK SENSOR (KS)

The knock sensor is attached to the cylinder block and senses engine knocking conditions.

A knocking vibration from the cylinder block is applied as pressure to the piezoelectric element. This vibrational pressure is then converted into a voltage signal which is delivered as output. If engine knocking occurs, ignition timing is retarded to suppress it.

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CIRCUIT DIAGRAM
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DTC - P0326 (KNOCK SENSOR (KS))
TROUBLESHOOTING HINTS

When knock sensor signal is abnormally low.

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HARNESS INSPECTION PROCEDURE
SENSOR INSPECTION
  1. Disconnect the knock sensor connector.

  1. Measure resistance between the terminal 2 and 3.

    SPECIFICATION
    Standard value about 5O [at 20C (68F)]
  1. If the resistance is continual, replace the knock sensor.

    TORQUE SPECIFICATION
    Knock sensor 16-28 Nm ( 160-250 kgcm, 11.8-18.4 lbft )
  1. Measure the capacitance between the terminal 2 & 3.

    Standard value: 800-1600 pF