Kia Optima: Underdrive Brake Control Solenoid Valve(UD/B_VFS). Schematic DiagramsCircuit Diagram

Underdrive Brake Control Solenoid Valve(UD/B_VFS). SpecificationsRepair procedures
If the there is lack of power, excessive oil consumption or poor fuel economy,
measure the compression pressure.
1.
W ...
Headlight escort function
The headlights (and/or taillights) will remain on for approximately 20 minutes
after the ignition key is removed or turned to the ACC or LOCK position. However,
if the driver’s door is opened an ...
Catalytic Converter. Description and Operation
Description
The catalytic converter of the gasoline engine is a three
way catalyst. It oxidizes carbon monoxide and hydrocarbons (HC), and separates
oxygen from the oxides of nitrogen (NOx).
...