KIA Niro: Rail Pressure Sensor (RPS)
Specification
Rail Pressure Sensor (RPS) Description and operation
Description
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 adjusts 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.
Circuit Diagram
Harness Connector
Rail Pressure Sensor (RPS) Repair procedures
Inspection
- Connect the KDS on the Data Link Connector (DLC).
- Measure the output voltage of the RPS during idle at various engine speeds.
Removal
- Release the residual pressure in fuel line.
(Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line").
- Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
- Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
- Remove the injector foam (A).
- Disconnect the rail pressure sensor connector (A), and then remove the sensor (B) from the delivery pipe.
Rail Pressure Sensor : 30.0 - 34.3 N*m (3.0 - 3.5 kgf*m, 22.1 - 25.3 lb*ft)
Installation
Warning
- 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.
- Install in the reverse order of removal.
Signal Waveform
БЮ
Fig.2) Nomal signal waveform of rail pressure sensor at engine idle.
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Accelerator Position Sensor (APS)
Specification
Accelerator Position Sensor (APS) Description and operation
Description
Installed on the accelerator pedal module, the Accelerator Position Sensor (APS)
detects the rotation
angle of the accelerator pedal. The APS is one o
Injector
Specification
Description
The GDI injector is similar to a standard injector, but sprays fuel at a much
higher pressure directly
into the combustion chamber and has a swirl disc to get the fuel swirling as it
exits the nozzle. This
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Purge Control Solenoid Valve (PCSV)
Specification
Purge Control Solenoid Valve (PCSV) Description and operation
Description
Installed on the intake manifold, the Purge Control Solenoid Valve (PCSV)
controls the evaporative
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A: Check Lane Safety system
When Lane Keeping Assist is not working
properly, the warning message will
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Washer fluid
Checking the washer fluid level
Kia NIRO Hybrid
Kia Niro EV
Operation
Check the fluid level in the washer
fluid reservoir and add fluid if necessary.
Plain water may be used if
washer fluid is not available.
However, use wash
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