Kia Forte: Engine Control System / Knock Sensor (KS)
Specifications
| Specification |
|
Item |
Specification |
|
Resistance(MΩ) |
4.87 |
Description and operation
| 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.
Schematic diagrams
| Circuit Diagram |
Harness Connector
Repair procedures
| Removal & Installation |
| 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 knock sensor (A) after loosening the mounting bolt.
|
| 4. |
Install in the reverse order of removal.
|
Camshaft Position Sensor (CMPS)
Description and operation
Description
Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position
by using a hall element.
It is related with Crankshaft Positi ...
Heated Oxygen Sensor (HO2S)
Specifications
Specification
HO2S [Bank 1/Sensor 1] (Linear type)
Item
Specification
Heater Resistance (Ω)
2.4 - 4.0 [20°C(68 ...
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