Check The Boost Pressure Sensor Output Signal - Hino Motors HINO 155 series Workshop Manual

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4

Check the boost pressure sensor output signal

Was there no abnormal change in the sensor output signal?
Go to step 5.
5
Inspect the intake air temperature sensor (intake manifold)
Was any failure found?
Clean the sensing unit and install it properly.
If damaged, replace the intake air tempera-
ture sensor (intake manifold).
Perform "After-inspection work" of INFOR-
MATION section.
ENGINE (J05E)/TROUBLESHOOTING
1. Set the starter key to the "LOCK" position.
Connect the vehicle to HINO DX Ⅱ .
2.
3. Start the engine.
4. Select [Engine].
5. Select [Actual boost pressure] from the [Data monitor and Active
test].
6. Race the engine from idle to NMR and verify that the boost pres-
SHTS021270300432
sure output signal varies.
There is no abnormal change in the sensor output signal.
(The pressure sensor signal response changes according
to the engine speed)
YES
1. Check the installation of the intake air temperature sensor (intake
manifold).
2. Make sure there is no dirt, damage or clogging in the sensing unit
of the intake air temperature sensor (intake manifold).
YES
Standard values
NO
Replace the boost pressure sensor.
Perform "After-inspection work" of INFOR-
MATION section.
NO
Go to step 6.