Hyundai Sonata LF: Engine Control System / Injector Specifications

Injector Description and Operation

Description The GDI injector is similar to a standard injector, but sprays fuel at a much higher pressure directly into the combustion chamber and has a swirl disc to get the fuel swirling as it exits the nozzle...

Injector Troubleshooting

Signal Waveform The three waveforms below are taken from the #1 and #4 injectors. The top waveform is from the high side (feed side) of the #1 and #4 injectors, while the middle waveform is from the low side (ground side) of the #1 injector and the bottom waveform is from the low side of the #4 injector...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Power Seat Motor Repair procedures

Inspection Diagnosis with GDS 1. The body electrocal system can be quickly diagnosed failed parts with vehicle diagnostic system (GDS). The diagnostic system (GDS) provides the following information. (1) Self diagnosis : Checking the failure code (DTC) and display (2) Current data : Checking the system input/output data state (3) Actuator test : Checking the system operation condition (4) Additional function : Other controlling such as he system option and zero point adjustment 2...

Hyundai Sonata LF 2014-2019 Service Manual: CVVT & Camshaft 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...