Mitsubishi Evolution X. Manual - part 333
ON-VEHICLE SERVICE
TSB Revision
INTAKE AND EXHAUST
15-7
INTAKE CHARGE PRESSURE CONTROL SYSTEM
CHECK
M1151001100342
AK703284
Three-way joint
AC
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.
AK703105
Boost hose
Turbochager
wastegate actuator
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
Boost hose end Normal state
Stopped: Ignition
switch in "ON"
position
Opened
Pressure leaks
Closed
Pressure
maintained
Rapid racing
Pressure leaks
5. Put the ignition switch in "LOCK" (OFF) position.
AK703285AC
No. 1 turbochager
wastegate solenoid valve
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
Boost hose end Normal state
Stopped: Ignition
switch in "ON"
position
Opened
Pressure leaks
Closed
Pressure
maintained
4000r/min after
warming up
engine
Pressure leaks
NOTE: Unless the pressurized state is normal, the turbo-
charger wastegate actuator, turbocharger wastegate solenoid
or the hose might have a malfunction.