Mitsubishi MOTORS L200 1996, Руководство по ремонту

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INTAKE AND EXHAUST –
On-vehicle Service
15-4
SUPERCHARGING PRESSURE CONTROL
SYSTEM CHECK
<Step III compatible 4D56-4WD>
1. Set the vehicle to the pre-inspection condition.
2. Turn the ignition switch to “LOCK” (OFF) position, and
connect the diagnosis connector to the MUT-
II
.
3. Start the engine, and let it run at idle.
4. Select the actuator testing function named “Item No. 35
or No. 36” of the MUT-
II to check that the variable geometry
actuator vacuum and the supercharging pressure increase
when the variable geometry solenoid valve is activated.
Variable geometry
solenoid valve
condition Variable geometry
actuator vacuum Supercharging
pressure
OFF 0 kPa Approximately –1
kPa
ON Approximately 80
kPa Approximately 3
kPa
NOTE
(1) If the variable geometry actuator vacuum is not in a normal
condition, the variable geometry actuator, variable
geometry solenoid valve, variable geometry control
pressure sensor, vacuum pump or hose may be faulty.
(2) If the variable geometry actuator vacuum is in a normal
condition but the supercharging pressure is not in a normal
condition, the variable geometry turbocharger nozzle,
boost pressure sensor, or hose may be faulty.
Caution
Be careful not to forcibly activate the variable geometry
solenoid valve to the fullest degree when running at a
high speed. Too much supercharging pressure could
damage the engine or the turbocharger.
MUT- II