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1.
caution |
Conduct the driving test in a
location where driving
at full acceleration can be done with safety.
Two person should be in the vehicle when the
test
is conducted; the person in the passenger seat
should read the indications shown by the
M.U.T.-III.
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Set the vehicle to the pre-inspection
condition.
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2.Turn the ignition switch
to "LOOK" (OFF) position, and connect the diagnosis
connector
to the M.U.T.-III. 3.Use the data list function
named "Item No. 6" manifold absolute pressure sensor of
the M.U.T.-III to check the supercharging pressure when the
engine speed increases to approximately
2,000 r/min or more by driving at full acceleration in 2nd.
Standard value: 132 - 148 kPa
4.If the supercharging pressure deviates
from the standard value, check the following
items for possible cause.
- Malfunction of the variable geometry
actuator
- Malfunction of the variable geometry solenoid
valve
- Malfunction of the variable nozzle
- Malfunction of the manifold absolute pressure
sensor
- Leakage of supercharging pressure
- Malfunction of the turbocharger
- Inadequate vacuum pressure to the variable geometry
solenoid valve
5.When the indicated supercharging is more than
standard value, supercharging control
may be faulty, therefore check the
followings.
- Malfunction of the variable geometry
actuator
- Malfunction of the variable geometry solenoid
valve
- Malfunction of the manifold absolute pressure
sensor
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