Kia Optima Hybrid: Emission Control System / Troubleshooting

Troubleshooting
Symptom
Suspect area
Engine will not start or struggle 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
Malfunction of the PCV valve
Rough idle
Malfunction of the Evaporative Emission Control System
Excessive oil consumption
Positive crankcase ventilation line clogged

Special Service Tools

Personal Protective Equipment NameIllustrationDescriptionInsulation gloveUsed when inspecting or working on the high voltage components[Insulation performance : 1000V / 300A or above]Insulation shoesUsed ...

Crankcase Emission Control System

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Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Ambient Sensor Description and Operation


Description 1. The ambient temperature sensor is located at the front of the condenser and detects ambient air temperature. It is a negative type thermistor; resistance will increase with lower temperature, and decrease with higher temperatures. 2. The sensor output will be used for discharge temperature ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Engine Control Module (ECM) Schematic Diagrams


ECM Terminal And Input/Output signal ECM Terminal Function Connector [C100-K] PinNo.DescriptionConnected to1Power groundChassis Ground2Battery power (B+)Ignition Switch3Power groundChassis Ground4Battery power (B+)Main Relay5Power groundChassis Ground6Battery power (B+)Battery 7-8-?9Fuel Level Sender ...

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