Hyundai Sonata LF: Engine Control System / Fuel Pressure Control Valve Schematic Diagrams

Fuel Pressure Control Valve Troubleshooting

S..

Fuel Pressure Control Valve Repair procedures

Inspection 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the fuel pressure regulator valve connector...

Other information:

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...

Hyundai Sonata LF 2014-2019 Service Manual: Engine Control Module (ECM) Repair procedures

Removal     When replacing the ECM, the vehicle equipped with immobilizer must be performed the procedure as below. [In the case of installing used ECM] 1. Perform "Neutral mode" procedure with GDS. (Refer to "Immobilizer" in BE group) 2...