Charge Air Cooler By-Pass Solenoid Valve
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 charge air cooler by-pass solenoid valve. See Figure . Apply air pressure to solenoid valve port "B". See Figure . Air from port "B" should flow from "C" only. Using jumper wires, apply battery voltage to solenoid valve terminals. Apply air pressure to solenoid valve port "A". Air should flow from port "B" only. Replace solenoid valve as necessary.