Duty Solenoid Vent Valve: B2200

Remove vacuum hose from EGR control valve and vent hose at intake manifold. Blow through vent hose and ensure air passes through valve. Disconnect duty solenoid valve connector. Apply battery power to terminal "B" and ground terminal "C". See Fig 1 . Blow through vent hose and ensure air does not pass through valve. Replace duty solenoid valve if defective.

Fig 1: Duty Solenoid Valve Test

Courtesy of MAZDA MOTORS CORP.