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: Air Cleaner Repair procedures

Removal and Installation 1. Remove the engine cover. 2. Disconnect the battery negative terminal. 3. DIsconnect the air duct (A). 4. Remove the air duct and air cleaner assembly. Tightening torque Hose clamp bolt: 2.9 ~ 4.9N.m (0...

Hyundai Sonata LF 2014-2019 Service Manual: Filler-Neck Assembly Repair procedures

Removal 1. Turn the ignition seitch OFF and disconnect the battery negative (-) cable. 2. Open the fuel filler door and then remove the filler-neck installation screw (A). 3. Lift the vehicle. 4. Remove the rear-LH wheel, tire, and the inner wheel house...