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Home >> Mazda >> 1990 >> B2200 Base, 2D Pickup, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests - CARBURETED >> Emission Systems & Sub-Systems >> Air Control Valve No. 2 Test
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Air Control Valve No. 2 Test

Remove air control valve No. 2. See Figure . Connect vacuum pump to valve. Apply vacuum. Verify valve stem starts to move at 1.97 in. Hg and stops at 3.54 in. Hg.

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