Kia Rio YB Quiz

Emission control system

In this manual: Emission control system
Maintenance and Service — 0Driving the vehicle — 0Getting to know your vehicle — 0Vehicle security systems — 0Introduction — 0Vehicle exterior — 0Emergency Procedures — 0Infants and small children — 0Older children — 0Pregnant women — 0Injured persons — 0Airbag crash sensors — 0Airbag deployment conditions — 0Airbag non-deployment conditions — 0Battery saver function — 0Follow Me Home function (if equipped) — 0Headlamp welcome function (if equipped) — 0Light control — 0High beam operation — 0Front fog lights (if equipped) — 0Rear Fog Light — 0Headlight Beam Leveling Device (if equipped) — 0Battery saver function — 0Follow Me Home function (if equipped) — 0Headlamp welcome function (if equipped) — 0Light control — 0High beam operation — 0Front fog lights (if equipped) — 0Rear Fog Light — 0Headlight Beam Leveling Device (if equipped) — 0Replacing the Headlight, Parking Light, Turn Signal Light, or Front Fog Light Bulb — 0Headlight beam leveling for headlights and front fog lights — 0Turn signal light bulb replacement — 0Rear combination lamp bulb replacement — 0Additional brake light replacement (if equipped) — 0Interior lamp bulb replacement — 0
3steps
~18min
2/5difficulty
Done 0 of 3

The emission control system is covered by a written limited warranty. Refer to the information in the Warranty and Service Booklet supplied with the vehicle.

Your vehicle is equipped with an emission control system that meets all applicable emission regulations. The following emission control systems are fitted:

  1. Crankcase emission control system
  2. Fuel vapor emission control system
  3. Exhaust emission control system

To ensure proper operation of the emission control system, have the vehicle inspected and serviced by an authorized Kia dealer according to the maintenance schedule in this manual.

Warning on Vehicle Inspection and Maintenance (with Electronic Stability Program (ESP))

  • To prevent ignition problems during dynamometer testing, turn off the Electronic Stability Program (ESP) system by pressing the ESP switch.
  • After completing the dynamometer test, turn the ESP system back on by pressing the ESP switch again.

1. Crankcase emission control system

To prevent air pollution from gases vented from the crankcase, the vehicle uses a crankcase ventilation system.

This system supplies fresh, filtered air to the crankcase through the air outlet hose. Inside the crankcase, the fresh air mixes with the blow-by gases, which then flow through the PCV valve into the intake air system.

2. Fuel vapor emission control system

The fuel vapor emission control system prevents fuel vapors from escaping into the atmosphere.

Fuel vapor canister

Fuel vapors generated in the fuel tank are absorbed and stored in the fuel vapor canister in the vehicle. While the engine is running, the fuel vapors stored in the canister are drawn into the engine through the purge control solenoid valve.

Purge control solenoid valve (PCSV)

The purge control solenoid valve is controlled by the engine control module (ECM). When the engine coolant temperature is low, the PCSV closes during idle so that evaporated fuel does not enter the engine. Once the engine has warmed up during driving, the PCSV opens, allowing evaporated fuel to flow into the engine.

3. Exhaust emission control system

The exhaust emission control system is a highly effective system that controls exhaust emissions while maintaining good vehicle performance.

Vehicle modifications

Do not make any modifications to the vehicle. Any modification to your vehicle may affect its performance, safety or durability, and may even cause it to violate government safety and emission regulations.

In addition, damage or deterioration caused by modifications may void the vehicle manufacturer's warranty.

  • The use of unauthorized electronic devices may cause abnormal vehicle operation, damage to wiring, battery discharge and fire. For your own safety, do not use unauthorized electronic devices.

Exhaust gas - precautions (carbon monoxide)

  • Exhaust gas may contain carbon monoxide, among other gases. For this reason, if you smell exhaust gas inside the vehicle, have the vehicle inspected and repaired immediately. If you suspect that exhaust gas is entering the vehicle, open all windows completely while driving. In that case, check and repair the vehicle immediately.
WARNING - Exhaust Exhaust gas from the engine contains carbon monoxide (CO). It is colorless and odorless, but breathing it can be fatal.

To avoid carbon monoxide poisoning, observe the following:

  • Do not run the engine in confined or enclosed spaces (such as garages) for longer than necessary to drive the vehicle out of the enclosed area.
  • If the vehicle has been stopped in the open for a longer period with the engine running, adjust the ventilation system (if necessary) to draw fresh outside air into the vehicle.
  • Never stay in a parked or stopped vehicle for an extended period with the engine running.
  • If the engine misfires or fails to start, repeated attempts to restart the engine for too long may damage the emission control system.

Precautions when operating catalytic converters (if equipped)

WARNING - Fire
  • The hot exhaust system may ignite flammable materials under the vehicle.

    Do not park, idle the engine or drive over or near flammable materials such as grass, plants, paper, leaves, etc.

  • While the engine is running and immediately after it is turned off, the exhaust system and catalytic converter become very hot. Do not touch the exhaust system or catalytic converter, as you may get burned.

    Do not remove the heat shield around the exhaust system, apply sealant to the underbody, or apply corrosion-protection coatings. Under certain conditions, this may cause a fire.

The vehicle is equipped with a catalytic converter emission control device. For this reason, be sure to observe the following instructions:

  • Be sure to refuel in accordance with the "Fuel Requirements" in Section 1.
  • Do not drive the vehicle if the engine malfunctions.
  • Do not use the engine for other purposes or operate it improperly. Examples of improper use of the vehicle include coasting with the ignition switched off and driving down steep slopes in gear with the ignition switched off.
  • Do not let the engine idle for extended periods (5 minutes or longer).
  • Do not make modifications or tamper with any engine or emission control system component.
Inspections and adjustments may only be performed by an authorized Kia dealer.
  • Avoid driving with a very low fuel level. Driving on fuel residue may cause ignition misfires and overload the catalytic converter.

    • Failure to follow the recommendations given here may damage your vehicle's catalytic converter. In addition, such actions will void the warranty.

    Diesel particulate filter (DPF), if equipped

    The diesel particulate filter (DPF) system removes soot emitted by the vehicle.

    Like a disposable air filter, the DPF system automatically burns off (oxidizes) and removes accumulated soot depending on driving conditions. In other words, active regeneration by the engine control system and high exhaust gas temperatures resulting from normal or elevated driving loads burn and remove the accumulated soot.

    However, if the vehicle continues to drive at low speed for a long time, the accumulated soot cannot be removed automatically due to low exhaust gas temperature. In this particular case, the soot quantity is beyond the detection limit, the soot oxidation process by the engine control system may not take place, and the malfunction indicator lamp will start flashing.

    When the malfunction indicator lamp is flashing, it may stop flashing after driving faster than 60 km/h, or after driving in a gear higher than 2nd with engine speed maintained at 1500 to 2000 rpm for some time (about 25 minutes).

    If the malfunction indicator lamp continues to flash despite following this procedure, please visit your nearest authorized Kia dealer to have the DPF system inspected.

    If the vehicle owner continues to drive for a long time with the malfunction indicator lamp flashing, the DPF system may be damaged and fuel consumption will increase.

    CAUTION - Diesel fuel (if the vehicle is equipped with a DPF) For diesel engine vehicles equipped with a DPF system, use diesel fuel that meets the applicable regulatory requirements.

    If the user uses diesel fuel with a high sulfur content (more than 50 parts per million (ppm) of sulfur) or additives that do not meet the technical specifications, the DPF system may be damaged and white smoke will be emitted from the engine.

    Test yourself

    A quick Kia Rio YB quiz: every answer comes with an explanation and a link to the manual page.