Charge Air Cooler (CAC) By-Pass Solenoid Valve
WARNING: This page is about a different car, the 2001 Mazda Protege, 2001 Mazda Millenia, 2001 Mazda MX-5 Miata, 2001 Mazda MPV, and 2001 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.
Remove CAC by-pass solenoid valve. See Figure . Apply air pressure to solenoid valve port "B". See Fig 1 . Air from port "B" should flow from "C" only. Using fused jumper wires, apply battery voltage to solenoid valve terminals. Apply air pressure to solenoid valve port "A". Air should flow from port "B" only. If CAC by-pass solenoid valve operation is not as specified, replace CAC by-pass solenoid valve.