This adapter connects an older IAC with a 2x2 weatherpack connection to a later model EFI harness that uses a Metripack/LS connection such as our EZ 2.0 or XFI Sportsman
The idle air control allows the ECU system to control engine idle speed by controlling airflow around the throttle body blades.
The idle air control allows the ECU system to control engine idle speed by controlling airflow around the throttle body blades.