Hyundai i-30: Engine Control System / Knock Sensor (KS)
Description and operation
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.

Specifications
Item
|
Specification
|
Capacitance (pF)
|
850 - 1,150
|
Resistance (MΩ)
|
R > 1
|
Schematic diagrams

Harness Connector

Repair procedures
1. |
Turn the ignition switch OFF and disconnect the battery negative (-)
cable.
|
2. |
Remove the intake manifold
(Refer to Engine Mechanical System - "Intake Manifold")
|
3. |
Remove the installation bolt (A), and then remove the sensor from the
cylinder block.
Tightening Torque :
18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 13.7 - 18.1 lb-ft)
|

|
•
|
Install the component with the specified torques.
|
•
|
Note that internal damage may occur when the component is dropped.
If the component has been dropped, inspect before installing.
|
|
1. |
Install in the reverse order of removal.
|
Description and operation
Description
Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position
by using a hall element...
Description and operation
Description
Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed
both upstream and downstream of the Manifold Catalytic Converter...
Other information:
Specifications
Smart Key Unit
Items
Specification
Rated voltage
DC 12V
Operating voltage
DC 9 - 16V
Operating temperature
-22°F to 167°F (-30°C to 75°C)
Load
Max...
■ Type A
■ Type B
1. Speed-restriction label
2. Sealant bottle and label with speed
restriction
3. Filling hose from sealant bottle to
wheel
4. Connectors and cable for the power
outlet direct connection
5. Holder for the sealant bottle
6...
Categories
If your vehicle is equipped with a
sunroof, you can slide or tilt your
sunroof with the sunroof control lever
located on the overhead console.

The ignition switch must be in the ON
position before you can open or
close the sunroof.
The sunroof can be operated for
approximately 30 seconds after the
ignition key is removed or turned to
the ACC or LOCK(or OFF) position.
However, if the front door is opened,
the sunroof cannot be operated even
within 30 seconds.
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