Idle Air Control Valve / Electronic Air Control Valve ( IACV / EACV )

The Idle Air Control Valve (IACV), also known as the Electronic Air Control Valve (EACV), controls the vehicle's idle based on signals from the ECU. The IACV / EACV is used to adjust idle speed when necessary (ie: for cold starts, air conditioning on, electronic load, etc.)