Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Kia Niro LXFACTORY OEM SERVICE PROCEDURE
Repair Procedures: Inspection
- Connect the KDS/GDS on the Data Link Connector (DLC).
- Measure the output voltage of the RPS during idle at various engine speeds.
RAIL PRESSURE SENSOR (RPS) VOLTAGE SPECIFICATION
| Pressure | Output Voltage (V) [V-ref = 5V] | |
|---|---|---|
| Bar | [MPa (kgf/cm2 , psi)] | |
| 0 | 0 (0, 0) | 0.5 |
| 140 | 14 (142, 2031) | 2.5 |
| 280 | 28 (286, 4061) | 4.5 |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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