Intake Charge Pressure Control System Check - Mitsubishi EVO X Repair Manual

Three-way joint
Boost hose
Turbochager
wastegate actuator
No. 1 turbochager
wastegate solenoid valve
INTAKE AND EXHAUST
ON-VEHICLE SERVICE
INTAKE CHARGE PRESSURE CONTROL SYSTEM
CHECK
1. Removing the black hose from the No.1 turbocharger
wastegate solenoid or the brown connector, connect
three-way joint between the hose and the solenoid.
2. Connect the pressurized type hand vacuum pump with the
three-way joint.
AK703284 AC
3. Use the turbocharger wastegate actuator control boost
nipple of air outlet fitting to remove the boost hose. Plug this
nipple.
CAUTION
Do not apply the pressure of 117kPA or more to prevent
the diaphragm damage.
4. Blocking or releasing the boost hose end, apply the
pressure. Check the pressurized state.
Engine state
Stopped: Ignition
switch in "ON"
position
AK703105 AC
Rapid racing
5. Put the ignition switch in "LOCK" (OFF) position.
6. Disconnect the connector of No.1 turbocharger wastegate
solenoid or the brown connector.
7. Blocking or releasing the boost hose end, apply the
pressure. Check the pressurized state. Plug the boost hose
end while driving.
Engine state
Stopped: Ignition
switch in "ON"
position
AK703285AC
4000r/min after
warming up
engine
NOTE: Unless the pressurized state is normal, the turbo-
charger wastegate actuator, turbocharger wastegate solenoid
or the hose might have a malfunction.
TSB Revision
Boost hose end Normal state
Opened Pressure leaks
Closed Pressure
maintained
Pressure leaks
Boost hose end Normal state
Opened Pressure leaks
Closed Pressure
maintained
Pressure leaks
15-7
M1151001100342