EGR Vent Solenoid Valve (Millenia)
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 EGR vent solenoid valve. Apply air pressure to port "A". See Fig 1 . Air should flow from ports "B" and "C". Apply air pressure to port "B" and air should flow from port "C". Using fused jumper wires, apply battery voltage to solenoid valve terminals. Apply air pressure to port "A". Air should flow from port "B" only. Air should not flow through ports "A" and "C" or ports "B" and "C". If EGR vent solenoid valve does not operate as specified, replace valve.