Hyundai Sonata LF: Engine Control System / Fuel Pressure Control Valve Specifications

Fuel Pressure Control Valve Description and Operation

Description Fuel Pressure Control Valve (FPCV) is installed on the high pressure fuel pump and controls fuel flow flowing into the injectors in accordance with the ECM signal calculated based on various engine condition...

Fuel Pressure Control Valve Troubleshooting

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Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation

Description Burglar Alarm State [B/A State] B/A StateDescriptionDISARM 1. In "DISARM" state, no vehicle start inhibition. So, when door, hood, or Tailgate is opened, there is no alarm sound and flashing. 2. If the battery is disconnected while the state is not "ARM/ARMWAIT/ALARM/REARM", B/A state is set to "DISARM" state...

Hyundai Sonata LF 2014-2019 Service Manual: Fuel Line Repair procedures

Removal     Whenever the high pressure fuel pump, fuel pipe, deliverypipe, or injector is removed immediately after shutting offthe engine, an injury may be caused by the release ofhighly pressurized fuel. Release the residual pressure inthe high pressure fuel line by referring to the "Residualfuel pressure release procedure" before removingany high pressure fuel system components...