Kia Picanto: Engine Control System / Rail Pressure Sensor (RPS)
Specifications
Item
|
Specification
|
Rated Voltage (V)
| 5
|
Operating Voltage (V)
| 4.75 - 5.25
|
Connector
| 3
|
Pressure
|
Output Voltage (V) [Vref=5V]
|
bar
|
[MPa (kgf/cm², psi)]
|
0
| 0 (0, 0)
| 0.5
|
175
| 14 (142, 2031)
| 2.5
|
350
| 28 (286, 4061)
| 4.5
|
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 into a
voltage signal, which is used by the ECM to precisely control the
injection amount and time. Also, if the actual pressure calculated from
the sensor output signal differs from the target rail pressure, it
controls the rail pressure by using the rail pressure control valve.
Schematic diagrams
Repair procedures
| 1. | Connect the KDS 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
| 175
| 14 (142, 2031)
| 2.5
| 350
| 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. | Turn the ignition switch OFF and disconnect the battery negative (-) terminal. |
| 3. | Remove the intake manifold.
(Refer to Engine Mechanical System - “Intake Manifold")
|
| 4. | Remove the delivery pipe & injector assembly.
(Refer to Fuel Delivery System - “Delivery Pipe")
|
| 5. | Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.
Rail Pressure Sensor:
30.0 - 35.0 N·m (3.1 - 4.1 kgf·m, 22.1 - 29.5 lb·ft) |
 |
| •
| Install the component to the specified torques. |
| •
| 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. |
Troubleshooting
Specifications
Specification
Exhaust Gas Temperature Sensor (EGTS) #1, 2
▷ Type : Thermistor type
Temperature [°C (°F)]
Resistance ( ...
Specifications
Specification
Accelerator
Position
Output Voltage (V) [Vref = 5V]
...
Other information:
Components and components location
Components
1. Shoe hold down pin 2. Shoe adjuster 3. Upper return spring 4. Adjusting lever 5. Shoe 6. Adjusting spring 7. Lower return spring 8. Shoe hold spring
Repair procedures
Removal
•
...
Filter inspection
The climate control air filter should be
replaced according to the maintenance
schedule. If the vehicle is operated in
severely air-polluted cities or on dusty
rough roads for a long period, it should
be inspected more frequently and replaced
earlier. When you replace ...
Exhaust Gas Temperature Sensor (EGTS)
Accelerator Position Sensor (APS)