Charge Air Cooler By-Pass Actuator
WARNING: This page is about a different car, the 1997 Mazda Millenia. However, it is still accessible from the selected car via links, so may be relevant.
Remove vacuum hose from air cooler by-pass actuator. See Figure . Connect vacuum pump to actuator and apply 7.4 in. Hg. Actuator rod should retract. If actuator does not operate, replace actuator.