Kia Rio: 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.

Evaporative Emission Control System

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Operation

Evaporative System Monitoring Evaporative And ORVR Emission Control System This system consists of below items; - Fill vent valve - ...

See also:

Compression Pressure Inspection
   If there is lack of power, excessive oil consumption or poor fuel economy, measure the compression pressure. ...

Underdrive Brake Control Solenoid Valve(UD/B_VFS) Circuit Diagram
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Description
Ignition timing is controlled by the electronic control ignition timing system. The standard reference ignition timing data for the engine operating conditions are pre-pro grammed in the ...