Kia Sorento: Troubleshooting - Emission Control System - Kia Sorento XM 2011-2020 Service ManualKia Sorento: Troubleshooting

Second Generation XM (2011-2020) / Kia Sorento XM 2011-2020 Service Manual / Emission Control System / Troubleshooting

Symptom
Suspect area
Engine will not start or stuggle to start
Vapor hose damaged or disconnected
Engine stuggle to start
Malfunction of the Purge Control Solenoid Valve
Rough idle or engine stalls
Vapor hose damaged or disconnected
Malfunction of the PCV valve
Rough idle
Malfunction of the Evaporative Emission Control System
Excessive oil consumption
Positive crankcase ventilation line clogged

Tightening Torques
Item kgf.m N.m lb-ft Positive Crankcase Ventilation (PCV) Valve installation 0.19 ~ 0.29 1.9 ~ 2.8 1.4 ~ 2.1 ...

Schematic Diagram
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See also:

Inspection
1. Check the signal waveform of the CMPS and CKPS using the GDS. Specification: Refer to “Wave Form” ...

Positive Crankcase Ventilation (PCV) Valve Operation Principle
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4WD ECU Input&Output Diagram
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