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.
2023 Kia Seltos Nightfall EditionFACTORY OEM SERVICE PROCEDURE
Engine Control System
TIGHTENING TORQUE SPECIFICATIONS - ENGINE CONTROL SYSTEM
| Item | N.m | kgf.m | lb.ft |
|---|---|---|---|
| ECM installation nut | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| ECM bracket installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| ETC installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| Manifold absolute pressure sensor installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| Boost pressure sensor installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| Water temperature sensor | 29 - 39.2 | 3.0 - 4.0 | 21.7 - 28.9 |
| Crankshaft position sensor installation bolt | 7.8 - 11.8 | 0.8 - 1.2 | 5.8 - 8.7 |
| Camshaft position sensor (Intake) installation bolt | 7.8 - 11.8 | 0.8 - 1.2 | 5.8 - 8.7 |
| Camshaft position sensor (Exhaust) installation bolt | 7.8 - 11.8 | 0.8 - 1.2 | 5.8 - 8.7 |
| Knock sensor installation bolt | 18.6 - 24.5 | 1.9 - 2.5 | 13.7 - 18.1 |
| Intake air temperature sensor installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| Front heated oxygen sensor | 39.2 - 49.1 | 4.0 - 5.0 | 28.9 - 36.2 |
| Rear heated oxygen sensor | 39.2 - 49.1 | 4.0 - 5.0 | 28.9 - 36.2 |
| Accelerator pedal module installation nut | 6.9 - 10.8 | 0.7 - 1.1 | 5.1 - 8.0 |
| CVVT oil control valve (Intake) installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| CVVT oil control valve (Exhaust) installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| Rail pressure sensor installation | 29.4 - 34.3 | 3.0 - 3.5 | 21.7 - 25.3 |
| Electronic throttle body installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
| Purge control solenoid valve bracket installation bolt | 9.8 - 11.8 | 1.0 - 1.2 | 7.2 - 8.7 |
Factory Service Tools
Use the Manual With the Right Hardware
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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.