Evaporative Emission Control System - 2.0L - Optima: Overview Kia Optima III рестайлинг

Description

The Evaporative Emission Control System prevents fuel vapor stored in fuel tank from vaporizing into the atmosphere. When the fuel evaporates in the fuel tank, the vapor passes through vent hoses or tubes to a canister filled with charcoal. The canister temporarily holds the vapor in the charcoal. The ECM will control the system in order to draw the gathered vapor into the combustion chambers during certain operating conditions. Engine manifold vacuum is used to draw the vapor into intake manifold.

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Operation

Normal Status Full Fuel Vehicle Rollover / steep Valve open Valve close Valve close

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1. Turn the ignition switch OFF, and then remove battery (-) cable.
2. Remove the fuel tank. (Refer to FUEL TANK ).
3. Disconnect the vapor hose (A).
4. Remove installation bolts (B), and then remove the ORVR valve (C) from the fuel tank.

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1. Visually check if the valve and gasket seal are deformed or damaged.
2. Check if the air is passed smoothly when blowing into the nipple of ORVR valve as below position.
3. Check if there is resistance when blowing into the nipple of ORVR valve as below position.

A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which seals the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clicking noise indicating the seal has been set.

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1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Lift the vehicle.
3. Disconnect the canister close valve connector (A).
4. Disconnect the ventilation hose (B).
5. Remove the fuel tank air filter after removing 2 bolts (C).
6. Release the lever (A) and then rotate the canister close valve (B) in the direction of the arrow shown in the illustration.
7. Remove CCV from the fuel tank air filter after coinciding installation parts (A, B).
8. Replace new fuel tank air filter.

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1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the canister close valve connector (A).
3. Disconnect the ventilation tube quick connector (B).
4. Release the lever (C), and then remove the fuel tank air filter (D) after rotating it in the direction of the arrow shown in the illustration.