Kia Optima Hybrid: Crankcase Emission Control System / Repair procedures

Inspection
1.
After disconnecting the vapor hose from the PCV valve, remove the PCV valve.
2.
Reconnect the PCV valve to the vapor hose.
3.
Run the engine at idle, then put a finger over the open end of the PCV valve and make sure that intake manifold vacuum can be felt.
   
The plunger inside the PCV valve will move back and forth based on the vacuum.

4.
If the vacuum is not felt inspect PCV operation, if operating correctly clean or replace the vapor hose.
Schematic Diagrams

Schematic Diagram ...

Positive Crankcase Ventilation (PCV) Valve Description and Operation

Operation Principle ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Valve Body Repair procedures


Removal     • Be sure to read and follow the “General Safety Information and Caution” before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries. • Be sure to shut off the high voltage circuit according ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Heated Oxygen Sensor (HO2S) Specifications


Specification HO2S [Bank 1/Sensor 1] (Linear type) ItemSpecificationHeater Resistance (?)2.5 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] (Binary type) A/F Ratio (?)Output Voltage(V)RICHApprox. 0.92LEANApprox. 0.04 ItemSpecificationHeater Resistance (?)3.3 ~ 4.1?[21°C(69.8°F)] ...

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