Special Tool; On-Vehicle Service; Turbocharger Supercharging Pressure Check - Mitsubishi Electric Lancer Evolution-VII Workshop Manual

INTAKE AND EXHAUST -
SERVICE SPECIFICATIONS
Item
Turbocharger supercharging pressure (waste gate solenoid
valve not operating) kPa
Initial activation pressure of waste gate actuator (at the stroke
of approximately 1 mm) kPa
Waste gate solenoid valve coil resistance (at 20_C) Ω
Initial activation pressure of air bypass valve kPa
Secondary air control solenoid valve coil resistance
(at 20_C) Ω
Manifold distortion of the installation surface mm

SPECIAL TOOL

Tool
Throttle body
Waste gate
solenoid valve
Plug
Service Specifications/Special Tool/On-vehicle Service
Number Name
MD998770 Oxygen sensor wrench

ON-VEHICLE SERVICE

TURBOCHARGER SUPERCHARGING
PRESSURE CHECK
Caution
Two persons should be in the vehicle when the test is
conducted; the person in the passenger seat should read
the indications shown by the pressure meter.
1. Disconnect the hose (black) from the turbocharger waste
gate solenoid valve, and connect the pressure gauge
to the hose. Plug the nipple of the solenoid valve from
which the hose (black) has been disconnected.
2. Drive at full-throttle acceleration in second gear and then
measure the supercharging pressure when the engine
speed in about 3,000 r/min.
Standard value: 59 – 84 kPa
3. If the supercharging pressure deviates from the standard
value, check the following items for possible cause.
D
D
D
Standard value
59 - 84
Approximately 100
29 - 35
Approximately 53
29 - 35
0.15 or less
Use
Removal and installation of oxygen sensor
Malfunction of the waste gate actuator
Leakage of supercharging pressure
Malfunction of the turbocharger
15-3
Limit
-
-
-
-
-
0.20