Kia Picanto: Engine Control System / Knock Sensor (KS)
Specifications
Item
|
Specification
|
Resistance(MΩ)
| 4.87
|
Capacitance (pF)
| 850 - 1150
|
Type
| Piezo-electricity
|
Pin
| 2
|
Description and operation
Knocking
is a phenomenon characterized by undesirable vibration and noise that
can cause engine damage. Installed on the cylinder block, Knock Sensor
(KS) senses engine knocking.
When
knocking occurs, the vibration from the cylinder block is applied as
pressure to the piezoelectric element. When knocking 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.

Schematic diagrams


Repair procedures
1. | Turn the ignition switch OFF and disconnect the battery negative (-) terminal. |
2. | Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
|
3. | Remove the delivery pipe.
(Refer to Fuel Delivery System - "Delivery Pipe")
|
4. | Remove the knock sensor (A) after loosening the mounting bolt.
Knock sensor mounting bolt:
18.6 - 23.5 N·m (1.9 - 2.4 kgf·m, 13.7 - 17.4 lb·ft) |
 |
•
| Install the component to 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. |
Specifications
Camshaft Position Sensor (CMPS)
Item
Specification
Type Hall effect type Air Gap (mm) 0.5 - 1.5 Pin ...
Specifications
Specification
HO2S [Bank 1/Sensor 1]
Item
Specification
Heater Resistance (Ω) 2.5 - 4.0 [20°C(68°F)] ...
Other information:
If you don’t hear an audible warning
sound or if the buzzer sounds intermittently
when shifting the gear to the R
(Reverse) position, this may indicate a
malfunction in the rear parking assist
system. If this occurs, have the system
checked by a professional workshop.
Kia recommends ...
Repair procedures
Inspection
Battery Voltage and Status
Check the battery voltage and status using the battery tester.
Battery Terminal
1. Move back and forth to check that the battery terminals (A) are loose or corroded.If the terminals are corroded, clean them.
If
battery positi ...