Emission Control System

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The vehicle's emission control system is covered by an unlimited written warranty. Refer to the warranty information in the vehicle's Warranty and Maintenance Booklet.

The vehicle is equipped with an emission control system that complies with all applicable regulations.

The following three emission control systems are provided:

  1. Crankcase emission control system
  2. Evaporative emission control system
  3. Exhaust emission control system

To ensure the proper operation of the emission control systems, it is recommended that the vehicle be inspected and maintained by an authorized Kia dealer in accordance with the maintenance schedule in this manual.

written warranty. Refer to the warranty information in the vehicle's Warranty and Maintenance Booklet.

The vehicle is equipped with an emission control system that complies with all applicable regulations.

The following three emission control systems are provided: (1) Crankcase emission control system (2) Evaporative emission control system (3) Exhaust emission control system To ensure the proper operation of the emission control systems, it is recommended that the vehicle be inspected and maintained by an authorized Kia dealer in accordance with the maintenance schedule in this manual.

Note for testing during inspection and maintenance (vehicles with Electronic Stability Program (ESP))

  • To prevent irregular engine operation during chassis dynamometer testing, turn off the Electronic Stability Program (ESP) by pressing the ESC switch.
  • After chassis dynamometer testing is complete, turn the ESC system back on by pressing the switch again.

1. Crankcase emission control system

The crankcase emission control system is used to prevent air pollution caused by blow-by gases released from the crankcase. The system supplies filtered fresh air to the crankcase through the intake hose. Inside the crankcase, the fresh air mixes with the blow-by gases, which then pass through the PCV valve into the intake system.

2. Evaporative Emission Control System

The evaporative emission control system is designed to prevent fuel vapors from escaping into the atmosphere.

Canister Fuel vapors generated in the fuel tank are absorbed and stored in an on-board canister. When the engine is running, the fuel vapors absorbed in the canister are drawn into the intake manifold through the canister purge control solenoid valve.

Canister Purge Control Solenoid Valve (PCSV) The canister purge control solenoid valve is controlled by the engine control module (ECM). When the engine coolant temperature is low and the engine is at idle, the PCSV closes to prevent evaporated fuel from being drawn into the engine. After the engine warms up during normal driving, the PCSV opens to introduce evaporated fuel into the engine.

3. Exhaust Emission Control System

The exhaust emission control system is an extremely effective system that controls exhaust emissions while maintaining optimal vehicle performance.

Vehicle Modifications This vehicle must not be modified. Modifying your vehicle may impair its performance, safety and durability, and may also result in violations of safety and emissions regulations.

In addition, any damage or performance degradation caused by any modification may not be covered by the warranty.

  • The use of unauthorized electrical devices may interfere with normal vehicle operation, damage wiring, discharge the battery and cause fire. For safety reasons, do not expose the vehicle to such situations.

Exhaust Gas Precautions (Carbon Monoxide)

  • Carbon monoxide may be present together with other exhaust gases. Therefore, if you notice any odor inside the vehicle, have it checked and repaired immediately. If you suspect exhaust gas is entering the passenger compartment, drive only with all windows fully open. Have the vehicle checked and repaired immediately.
WARNING - Exhaust gas Engine exhaust gas contains carbon monoxide (CO). Being colorless and odorless, it is dangerous and can be fatal if inhaled. Follow the instructions below to avoid CO poisoning.
  • Do not run the engine in enclosed or confined areas (such as garages) for longer than strictly necessary to move the vehicle into or out of them.
  • When stopping for more than a few minutes with the engine running in an open area, adjust the ventilation system (as needed) to draw outside air into the passenger compartment.
  • Never remain stationary for long periods with the engine running.
  • If the engine stalls or fails to start, prolonged restart attempts may damage the emission control system.

Precautions for Using the Catalytic Converter (if equipped)

WARNING - Fire Hazard

  • A hot exhaust system can ignite flammable materials under the vehicle. Avoid parking, leaving the engine idling, or driving over or near flammable objects such as grass, vegetation, paper, leaves, etc.
  • The exhaust system and catalytic converter become very hot while the engine is running and immediately after it is turned off. Keep away from the exhaust system and catalytic converter to avoid burns.
In addition, do not remove the heat shield around the exhaust system, do not apply undercoating to the underbody, and do not apply anti-corrosion coatings to the vehicle. Under some circumstances, there is a risk of fire.

This vehicle is equipped with an emission control system that includes a catalytic converter.

Therefore, observe the following precautions:

  • Refuel in accordance with 'Fuel Requirements' in Section 1.
  • Do not drive the vehicle when it shows signs of malfunction, such as engine misfiring or significant loss of performance.
  • Do not misuse or abuse the engine. Examples of misuse include driving with the engine switched off, or coasting downhill in gear with the engine off.
  • Do not run the engine at high idle speed for extended periods (5 minutes or more).
  • Do not modify or tamper with any part of the engine or the emission control system.
All inspections and adjustments must be carried out by an authorized Kia dealer.
  • Do not drive with a low fuel level. Running out of fuel can cause engine misfires, which may overload the catalytic converter.
  • Failure to observe these precautions may damage the catalytic converter and the vehicle. Such actions may also void the warranty.

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