Idle Speed Control System: Notes

Idle speed of engine is controlled by Electronic Air Control Valve (EACV) and idle-up valve (Integra) or fast idle valve. EACV signals from ECU are based upon various sensor input signals. These signals may include any or all of following: charging system voltage signal, transmission gear selector position signal (auto. trans.), power steering oil pressure switch signal, air conditioning clutch signal, clutch switch signal (man. trans.) and brake switch signal.