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Home >> Hyundai >> 1988 >> Excel Base, 2D Hatchback >> Repair and Diagnosis >> Engine Performance >> System >> Feedback Carburetor System >> Operation >> Feedback Carburetor System (FBC) >> Vacuum Switch

Vacuum Switch

The vacuum switch is a contact type switch that uses manifold vacuum to override a calibrated spring to close contacts. This switch informs the ECU of idle or deceleration conditions.

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