Air Bypass Valve (ABV) Actuator

WARNING: This page is about a different car, the 1995 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.

Remove ABV actuator. See Fig 1 . Verify air does not flow from port "A" to port "B". See Fig 2 . Connect a vacuum pump to ABV actuator port "C" and apply 10 in. Hg (33.5 kPa). Air should be able to pass from port "A" to port "B". Airflow should increase as vacuum to port "C" is increased. Replace ABV actuator if operation is not as described.

Fig 1: Locating Engine Control Input Components (Millenia S)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Identifying ABV Actuator Ports

Courtesy of MAZDA MOTORS CORP.