Hyundai Palisade: Engine Control System / Rail Pressure Sensor (RPS)
Description and operation
Installed on the delivery pipe, the Rail Pressure Sensor (RPS) measures the
instantaneous fuel pressure in the delivery pipe. The sensing element (Semiconductor
element) built in the sensor converts the pressure to voltage signal. By using
this signal, the ECM can control correct injection amount and timing and adjust
the fuel pressure with the fuel pressure regulator valve if the target pressure
is different from the actual pressure calculated by the RPS output signal.
![Hyundai Palisade. Description and operation](images/rail_pressure_sensor_rps_-522/390/hyundai_palisade__description_and_operation_967.gif)
Specifications
▷ Type : Piezo-electricity type
Pressure
|
Output Voltage (V)
[Vref=5V]
|
bar
|
[MPa (kgf/cm², psi)]
|
0
|
0 (0, 0)
|
0.5
|
140
|
14 (142, 2031)
|
2.5
|
280
|
28 (286, 4061)
|
4.5
|
![Hyundai Palisade. Specifications](images/rail_pressure_sensor_rps_-522/390/hyundai_palisade__specifications_968.gif)
Troubleshooting
![Hyundai Palisade. Troubleshooting](images/rail_pressure_sensor_rps_-522/390/hyundai_palisade__troubleshooting_969.gif)
Schematic diagrams
![Hyundai Palisade. Schematic diagrams](images/rail_pressure_sensor_rps_-522/390/hyundai_palisade__schematic_diagrams_970.gif)
Harness Connector
![Hyundai Palisade. Schematic diagrams](images/rail_pressure_sensor_rps_-522/390/hyundai_palisade__schematic_diagrams_971.gif)
Repair procedures
1. |
Connect the diagnostic tool on the Data Link Connector (DLC).
|
2. |
Measure the output voltage of the RPS at idle and various engine speed.
Pressure
|
Output Voltage (V)
[Vref=5V]
|
bar
|
[MPa (kgf/cm², psi)]
|
0
|
0 (0, 0)
|
0.5
|
140
|
14 (142, 2031)
|
2.5
|
280
|
28 (286, 4061)
|
4.5
|
|
1. |
Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel
Line")
|
2. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
|
3. |
Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
|
4. |
Disconnect the rail pressure sensor connector (A), and then remove the
sensor (B) from the delivery pipe.
Rail Pressure Sensor :
29.4 - 34.3 N.m (3.0 - 3.5 kgf.m, 21.7 - 25.3 lb-ft)
|
![Hyundai Palisade. Repair procedures](images/rail_pressure_sensor_rps_-522/390/hyundai_palisade__repair_procedures_972.gif)
|
• |
Install the component to the specified torque.
|
• |
Note that internal damage may occur when the component is dropped.
If the component has been dropped, inspect before installing.
|
|
1. |
Install in the reverse order of removal.
|
Description and operation
Description
Heated Oxygen Sensor (HO2S), consisting of zirconium and alumina, is installed
on both upstream and downstream of the Manifold Catalytic Converter (MCC) to
detect the air/fuel ratio and send it to the ECM...
Description and operation
Description
Continuous Variable Valve Timing (CVVT) system advances or retards the valve
timing of the intake and exhaust valve in accordance with the ECM control signal
which is calculated by the engine speed and load...
Other information:
..
I : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*1 : The drive belt should be replaced when cracks occur or tension is
reduced.
*2 : If TOP TIER Detergent Gasoline is not available, one bottle of additive is
recommended...
Categories
Seat belt warning light
![Hyundai Palisade. Seat Belt Warning Light](images/books/1/hyundai_palisade_seat_belt_warning_light_52.png)
Driver's seat belt warning
As a reminder to the driver, the seat
belt warning light will illuminate for
approximately 6 seconds each time
you place the ignition switch to the
ON position regardless of belt fastening.
At this time, if the seat belt is
not fastened a warning chime will
sound for 6 seconds.
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