Hyundai Sonata LF: Engine Control System / Injector Description and Operation
Hyundai Sonata LF 2014-2019 Service Manual / Engine Control / Fuel System / Engine Control System / 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. This aids in atomization of the fuel.
The ECM controls both the feed circuits (high side) to feed
voltage to the injectors and the ground circuits (low side) to energize
the injectors. Also, the feed for 2 injectors comes from the same driver
set. As the ignition coils are paired with cylinders (1-4 and 2-3), the
injectors are also set up in pairs.
Accelerator Position Sensor (APS) Repair procedures
Inspection 1. Connect the GDS on the Data Link Connector (DLC). 2. Turn the ignition switch ON. 3. Measure the output voltage of the APS 1 and 2 at C...
Other information:
Hyundai Sonata LF 2014-2019 Service Manual: Components and Components Location
C..
Hyundai Sonata LF 2014-2019 Service Manual: Immobilizer Control Unit Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the driver crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") 3. Remove the knee airbag module. (Refer to Restraint - "Knee Airbag (KAB) Module") 4. Disconnect the connector of the immobilizer unit and then remove the immobilizer unit (A) after loosening a nut...
Categories
- Manuals Home
- Hyundai Sonata Owners Manual
- Hyundai Sonata Service Manual
- Brake System
- Suspension System
- Transmission Gear Oil General Information
- New on site
- Most important about car
Copyright В© 2026 www.hsonatalf.org