Kia Rio: Description

Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking.

When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element. When a knock occurs, the sensor produces voltage signal. The ECM retards the ignition timing when knocking occurs. If the knocking disappears after retarding the ignition timing, the ECM will advance the ignition timing. This sequential control can improve engine power, torque and fuel economy.

Knock Sensor (KS)

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Specification

Item Specification Capacitance (pF) 950 ~ 1,350 Resistance (MΩ) 4.87 ...

See also:

Installation
   • Install the component with the specified torques. • ...

Troubleshooting
Symptom Suspect area Engine will not start or hard to start Vapor hose damaged or disconnected Engine struggles to start Malfunction of the Pu ...

Instrument panel overview
1. Instrument cluster 2. Horn 3. Driver’s front air bag 4. Light control/Turn signals 5. Wiper/Washer 6. Ignition switch or ENGINE START/ STOP button 7. Hazard warning flasher switch 8. Aud ...