On-Vehicle Service; Manifold Vacuum Check; Intake Charge Pressure Check - Mitsubishi EVO X Repair Manual

ON-VEHICLE SERVICE

No. 1 turbocharger
wastegate solenoid
Cap
AK703282
No. 2 turbochager
wastegate solenoid
AK703283 AC
No. 2 turbochager
wastegate solenoid
AK703283 AC
TSB Revision
INTAKE AND EXHAUST
ON-VEHICLE SERVICE

MANIFOLD VACUUM CHECK

Refer to GROUP 11A, Engine Mechanical − On-vehicle Service
− Manifold Vacuum Check.

INTAKE CHARGE PRESSURE CHECK

1. Removing the black hose from the No.1 turbocharger
wastegate solenoid or the brown connector, install the
pressure gauge to this hose. Cap the nipple of solenoid after
removing the black hose.
AC
2. Disconnect the black connector of No.2 turbocharger
wastegate solenoid.
3. When the engine speed reaches approximately 3000r/min
or more with the throttle fully opened in the second gear,
measure the boost pressure.
Standard value: 85 − 159kPa (12.4 − 23.0 psi)
4. If the boost pressure is lower than the standard, check the
following possible causes.
a. Turbocharger wastegate actuator malfunction
b. Boost pressure leakage
c. Turbocharger malfunction
5. If the boost pressure is higher than the standard, check on
the following areas because the boost pressure control
might be abnormal.
a. Turbocharger wastegate actuator malfunction
b. Wastegate regulating valve malfunction
c. Rubber hose of turbocharger wastegate actuator discon-
nected or cracked
6. Connect the black connector of No.2 turbocharger
wastegate solenoid.
P.11A-16
15-5
M1151001800352
M1151001000549