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: Repair procedures

Adjustment Glass Adjustment     • Check the glass run channel for damage or deterioration, and replace them if necessary. 1. Remove the front door trim. (Refer to Front Door - "Front Door Trim") 2. Remove the front door window glass mounting hole plug (A)...

Hyundai Sonata LF 2014-2019 Service Manual: A/C Pressure Transducer Description and Operation

Description The A/C Pressure Transducer (APT) converts the pressure value of high pressure line into voltage value after measuring it. By converted voltage value, engine ECU controls the cooling fan by operating it high speed or low speed. Engine ECU stops the operation of the compressor when the temperature of refrigerant line is very high or very low irregularly to optimize air conditioning system...