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Home >> Mazda >> 1987 >> 626 DX, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Air Injection System >> Component Testing >> No. 1 Air Control Valve (ACV) >> 626
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No. 1 Air Control Valve (ACV): 626

Remove ACV. With vacuum pump attached, apply vacuum gradually. ACV stem should begin to move at 7-11 in. Hg. If not, replace ACV.

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