Civic Hatchback L4-1488cc 1.5L SOHC (EW3) MFI (1986)
_mfi/Page-354001.png)
Auxiliary Air Valve (Idle Speed): Description and Operation
A higher engine speed is required to prevent erratic running when engine is warming up. When engine is cold, the fast idle control solenoid valve
opens to bypass additional air into the intake manifold.