Hino 238, Workshop Manual

Page: 319 / 919

ENGINE CONTROL SYSTEM (J08E) 4–1096
5
Inspect the
boost pressure
sensor
1. Check the installation of the
boost pressure sensor.
2. Make sure there is no dirt or
damage to the boost pres-
sure sensor.
Failure found:
Go to YES.
No failure
found: Go to
NO.
Clean the
boost pressure
sensor and
install it prop-
erly. If dirt,
clogging or
damage was
found, replace
the sensor.
Perform "After-
inspection
work" of
INFORMA-
TION section.
Go to step 6.
6
Check the
operation of
the VNT actu-
ator (DC
motor) [Hino-
DX]
Connect the VNT controller and
VNT actuator connector and
erase the trouble history.
Turn the starter switch from
"LOCK" position to the "ON" posi-
tion, check if P226C has been
detected in [Engine].
HINT
Turning the starter switch OFF
and ON verifies the wiping
operation of the VNT actuator
(DC motor).
DTC P226C
has been
detected: Go
to YES.
No DTC has
been detected:
Go to NO.
Replace the
turbocharger.
Perform "After-
inspection
work" of
INFORMA-
TION section. Procedure
completed.
Perform "After-
inspection
work" of
INFORMA-
TION section.
DTC: P226C Boost pressure slow response Inspection procedure
Step Action Description Judgement
Check
(Yes/No)
Yes No