Air By-Pass Valve Actuator

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, 2002 Mazda MX-5 Miata, and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.

Remove Air By-Pass Valve (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 over 10 in. Hg of vacuum. Air should flow from port "A" to port "B". Airflow should increase as vacuum to port "C" is increased. If ABV actuator does not operate as specified, replace ABV actuator.

Fig 1: Identifying Air Charging Pressure Control System Components (Millenia 2.3L)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Identifying ABV Actuator Ports (Millenia 2.3L)

Courtesy of MAZDA MOTORS CORP.