Engine Control System/Fuel System

Rail Pressure Sensor (RPS) Repair Procedures

6steps
~36min
2/5difficulty
02040608010034.325N·mlb·ft
Tightening torque found on this page
Done 0 of 6

Inspection

  1. Connect the GDS to the Data Link Connector (DLC).
  2. Measure the RPS output voltage at idle and at various engine speeds.
    Condition Output voltage (V)
    Idle approx. 1.2
    1500 rpm 2,0 ~ 2,2
    6300 rpm approx. 2.8

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
  2. Relieve the residual fuel pressure in the fuel line. (Refer to Fuel System - Repair Procedures - "Relieve Residual Fuel Pressure in Fuel Line").
    When the fuel pump fuse is removed, a diagnostic trouble code (DTC) is stored. Clear the DTC with GDS after completing the "Relieve Residual Fuel Pressure in Fuel Line" procedure.
  3. Remove the intake manifold. (Refer to Engine Mechanical System - "Intake Manifold")
  4. Disconnect the rail pressure sensor connector (A) and remove the sensor from the fuel rail.

Installation

  • Install the component with the specified torque.
  • Note that internal damage may occur if the component is dropped. If the component has been dropped, inspect it before installation.
  1. To install, reverse the removal procedure. Rail pressure sensor: 29.4 ~ 34 N·m

Test yourself

A quick Kia Cadenza VG Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.