Maintenance

Emission Control System

~4min read

The emission control system of your vehicle is covered by a written limited warranty. See the warranty information contained in the Warranty and Maintenance booklet. Your vehicle is equipped with an emission control system that meets all emission standards.

There are three emission control systems, as described below.

1. Crankcase Emission Control System

2. Evaporative Emission Control System

3. Exhaust Emission Control System

To ensure proper function of the emission control systems, your vehicle must be inspected and serviced by a qualified shop according to the maintenance schedule in this manual. Kia recommends visiting an authorized Kia dealer/service partner. Precautions for Inspection and Maintenance (with Electronic Stability Control (ESC))

  • To prevent engine misfires during dynamometer testing, turn the Electronic Stability Control (ESC) system off by pressing the ESC switch.
  • After completing the dynamometer test, turn the ESC system back on by pressing the ESC switch again.

1. Crankcase Emission Control System

The Positive Crankcase Ventilation (PCV) system is used to prevent air pollution caused by crankcase gases escaping into the atmosphere. This system supplies fresh filtered air to the crankcase through the air intake hose. Inside the crankcase, fresh air mixes with the crankcase 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 vapor generated inside the fuel tank is absorbed and stored in the onboard canister. When the engine is running, the fuel vapor absorbed by the canister is drawn into the intake manifold through the Purge Control Solenoid Valve (PCSV).

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 at idle, the PCSV closes so that evaporated fuel does not enter the engine. After the engine warms up during normal driving, the PCSV opens to supply evaporated fuel to 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

This vehicle must not be modified. Modification of your vehicle may affect its performance, safety, or durability and may even violate government safety and emission regulations. In addition, damage or performance problems resulting from any modification are not covered by the warranty.

• If you use unauthorized electronic devices, this may cause abnormal vehicle operation, wire damage, battery discharge, or fire. For your safety, do not use unauthorized electrical devices.

Engine Exhaust Precautions (Carbon Monoxide)

• Carbon monoxide may be present in other exhaust gases. Therefore, if you smell exhaust fumes of any kind inside your vehicle, have the vehicle checked and repaired immediately. If you suspect exhaust gases are entering your vehicle, drive only with all windows fully open. Have the vehicle checked and repaired immediately.

WARNING

Exhaust

Engine exhaust contains carbon monoxide (CO). Although it is colorless and odorless, it is dangerous and can be fatal if inhaled. Follow the instructions below to avoid carbon monoxide poisoning.

  • Do not operate the engine in enclosed or confined areas (such as garages) any longer than necessary to enter or exit the area.
  • When the vehicle is stopped in an open area for more than a short time with the engine running, adjust the ventilation system (if necessary) to draw outside air into the vehicle.
  • Never sit in a parked or stopped vehicle for a long period with the engine running.
  • When the engine stalls or fails to start, excessive attempts to restart the engine may cause damage to the emission control system.

Catalytic Converter Operation Precautions

WARNING

Fire

  • The hot exhaust system may ignite flammable materials under the vehicle. Do not park, stop or drive the vehicle over or near flammable materials such as dry grass, paper, leaves, etc.
  • The exhaust system and catalytic converter become very hot while the engine is running or immediately after the engine is turned off. Keep away from the exhaust system and catalytic converter. You may be burned. Also, do not remove heat shields around the exhaust system, do not seal the underbody, and do not apply corrosion protection coatings to the vehicle. Under certain conditions, this may create a fire hazard.

Your vehicle is equipped with a catalytic converter. Therefore, the following precautions must be observed:

  • Be sure to fuel your vehicle in accordance with the "Fuel Requirements" on page 1-03.
  • Do not operate the vehicle if signs of engine malfunction exist, such as engine misfire or noticeable loss of performance. • Do not misuse or abuse the engine. Examples of misuse are coasting with the ignition switched off and descending steep hills in gear with the ignition switched off.
  • Do not run the engine at high idle speed for a long time (5 minutes or more).
  • Do not modify or tamper with any part of the engine or emission control system. All inspections and adjustments must be performed at a qualified shop. Kia recommends visiting an authorized Kia dealer/service center.
  • Avoid driving with a very low fuel level. Running out of fuel may cause engine misfire, resulting in damage to the catalytic converter.

Failure to observe these precautions may cause damage to the catalytic converter and to your vehicle. In addition, such actions may void your warranties.

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