SUPERCHARGING PRESSURE CONTROL SYSTEM CHECK <4G1>



1.Disconnect the hose (black) from the turbocharger waste gate solenoid valve and connect a three-way joint between the hose and the solenoid valve.
2.Connect a hand pump (pressurized type) to the three-way joint.

3. Disconnect the hose from the turbocharger waste gate actuator control boost nipple and plug the nipple. Do not apply the pressure of 75 kPa or more to prevent the diaphragm damage.
4.Applying a pressure with the hand pump, check tightness both when the hose end is closed and when it is open.
Engine state
Hose end
Normal state
Stop
(Ignition switch: ON)
Opened
Pressure leaks.
Closed
Pressure is maintained.
Idling (after warm-up)
Pressure leaks.
note If this check indicates an abnormal condition; the turbocharger waste gate actuator, turbocharger waste gate solenoid or hose is broken.