Paseo L4-1497cc 1.5L DOHC (5E-FE) (1992)
Idle Up Control Valve: Description and Operation
PURPOSE
The air control valve is used to maintain proper idle speeds during varying conditions.
LOCATION
The ACV is mounted to the right side of the intake plenum.
CONSTRUCTION
The valve is a duty-cycle operated air control valve.
OPERATION
The ACV receives a continuous signal the ECU. By varying the ON/OFF time ratio of the signal, the ECU is able to control the size of the air
passage through the valve. Air passing through the valve bypasses the throttle which, causes an increase in idle speed.