Millenia L V6-2.5L DOHC (1997)
The pressure modifier valve converts solenoid reducing pressure to modifier pressure that matches throttle valve opening angle (engine load).
The solenoid reducing pressure generated by the solenoid reducing valve is constantly applied to the step in the right side of the pressure modifier valve.
When the throttle valve opening angle is small, the duty value of the pressure control solenoid is low.
The hydraulic pressure applied to the left side of the pressure modifier valve drops due to the pressure control solenoid action, moving the modifier valve
to the left. The resultant modifier pressure is low. When the throttle valve opening angle is large, the duty value of the pressure control solenoid is high.
The hydraulic pressure applied to the left side of the pressure modifier valve is not easily drained by the pressure control solenoid, moving the pressure
modifier valve to the right. The resultant modifier pressure is high. Through this process, modifier pressure is controlled depending on the throttle valve
opening angle.
Pressure Modifier Accumulator
This valve stabilizes the modifier pressure adjusted by the pressure modifier valve to prevent modifier pressure pulsation.
The valve is pushed to the left by modifier pressure (21) and to the right by spring force. When modifier pressure (21) pulsates at high pressure, the valve
moves to the left. When it pulsates at low pressure, the valve moves to the right. This operation stabilizes modifier pressure.
Converter Relief Valve
