Kia Optima: Knock Sensor (KS). Description and Operation - Engine Control System - Engine Control/Fuel System - Kia Optima TF 2011-2020 Service ManualKia Optima: Knock Sensor (KS). 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.


Installation
Х Install the component with the specified torques. Х Note that internal damag ...

Knock Sensor (KS). Specifications
Specification Item Specification Capacitance (pF) 850 ~ 1,150 ...

See also:

Installation
Pressure Side Impact Sensor 1. Install the new pressure side impact sensor with the screws then connect the pressure side impact sensor connector. Tightening t ...

Power Steering
Power steering uses energy from the engine to assist you in steering the vehicle. If the engine is off or if the power steering system becomes inoperative, the vehicle may still be steered, but it ...

Replacement
1. Remove the front wheel & tire. Tightening torque:88.3 ~ 107.9N.m(9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft) ...

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