Kia Picanto: Engine Control System / Knock Sensor (KS)

Kia Picanto JA 2017-2025 Service & Repair Manual / Engine Control / Fuel System / Engine Control System / Knock Sensor (KS)

Specifications
Specification
Item
Specification
Resistance(MΩ)
4.87
Capacitance (pF)
850 - 1150
Type
Piezo-electricity
Pin
2

Description and operation
Description
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
Circuit Diagram
[A/T]

[M/T]

Repair procedures
Removal
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)

Installation
   
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.
Camshaft Position Sensor (CMPS)
Specifications Camshaft Position Sensor (CMPS) Item Specification Type Hall effect type Air Gap (mm) 0.5 - 1.5 Pin ...

Heated Oxygen Sensor (HO2S)
Specifications Specification HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.5 - 4.0 [20°C(68°F)] ...

Other information:

Kia Picanto JA 2017-2025 Owner's Manual: Self-diagnosis


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 ...

Kia Picanto JA 2017-2025 Service & Repair Manual: Battery


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 ...

Copyright © www.kpicanto.com 2017-2025