Kia Niro: Emission Control System / Troubleshooting

Kia Niro 2017 (DE HEV) Service Manual / Emission Control System / Troubleshooting

Troubleshooting

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

Schematic diagrams

Schematic Diagram ...

Crankcase Emission Control System

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Other information:

Kia Niro (DE HEV) Owners Manual: When the hybrid vehicle shuts off
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Kia Niro 2017 (DE HEV) Service Manual: Steering Column Shroud Panel Repair procedures
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