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Home >> Acura >> 1990 >> Legend L, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Idle Control System >> Electronic Air Control Valve (EACV) System
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Electronic Air Control Valve (EACV) System

The idle speed is controlled by EACV and fast idle valve. EACV valve changes amount of air by-passing into the intake manifold. EACV responds to changes received by ECU from various sensor and signal sources.

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