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Home >> Mazda >> 1994 >> 626 DX, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Control System >> Idle Speed Control (ISC) System >> Air Valve System
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Air Valve System

Connect jumper wire between diagnostic connector terminals TEN and GND. Connect tachometer to diagnostic connector terminal IG. See Figure . Start engine. Idle speed should decrease as engine reaches normal operating temperature. Replace valve as necessary.

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