| SONATA(YF) >2013 > G 2.4 GDI > Engine Control/Fuel System > Engine Control System > Rail Pressure Sensor (RPS)>Repair procedures |

Inspection

1. | Connect the GDS on the Data Link Connector (DLC).

2. | Measure the output voltage of the RPS at idle and various engine speed.

Condition | Output Voltage (V)
Idle | Approx. 1.2
1,500 rpm | 2.0 ~ 2.2
6,300 rpm | Approx. 2.8

Removal

1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable.

2. | Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group).

When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure in Fuel Line” work.

3. | Remove the intake manifold (Refer to “Intake And Exhaust System” in EM group).

4. | Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.

Installation

• | Install the component with the specified torques.

• | Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing.

1. | Installation is reverse of removal.

Rail Pressure Sensor Installation: 18.0 ~ 22.0 N.m (1.8 ~ 2.2 kgf.m, 13.3 ~ 16.2 lb-ft)