Hyundai Sonata LF: Engine Control System / Knock Sensor (KS) Schematic Diagrams

Knock Sensor (KS) Specifications

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Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold (Refer to “Intake And Exhaust System” in EM group)...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures

On-vehicle Inpection     • First of all, check for DTCs. If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. (Refer to DTC guide)     • Check that the battery cables are connected to the correct terminals...

Hyundai Sonata LF 2014-2019 Service Manual: CVVT Oil Control Valve (OCV) Description and Operation

Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load. By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work...