ENGINE CONTROL SYSTEM (J08E)
4–1196
Check the injection quantity and the rotational fluctuation.
1.
Start the Engine.
2.
Select [Injection quantity] from the [Data Monitor] menu, and mea-
sure the fuel injection quantity.
3.
Select [Engine speed] from [Data Monitor] on the menu, and mea-
sure the rotational fluctuation.
NO
YES
11
Inspect the Injector [Hino-DX]
Select
Engine
SAPH16F010300929
Measurement conditions
Engine speed: 1,500 r/min
No-load
T/M shift lever: Neutral
A/C off and Air compressor un-operating
Engine coolant temperature: More than 80
C {176
F}
NE: Rotational fluctuation
Engine NE (r/min)
@1500r/min (measurement by Hino-DX)
SAPH16F010300930
Standard values
Type of
MT
Allison 2200
Allison 2500
Allison 3500
Q (mm
3
/st)
5.0q
6.0q
Ne (r/min)
26
Do the measurements meet the standard value? (both Injection quantity and rotational fluctua-
tion)
Go to step 12.
Replace the injector.
Perform "After-inspection work" of INFOR-
MATION section.
Summary of Contents for 238
Page 201: ...ENGINE CONTROL SYSTEM J08E 4 978 Harness disconnection or short circuit ...
Page 215: ...ENGINE CONTROL SYSTEM J08E 4 992 Malfunction of sensor 2 Malfunction of engine ECU ...
Page 301: ...ENGINE CONTROL SYSTEM J08E 4 1078 8 Estimated failure factors Malfunction of engine ECU ...
Page 709: ...DEF SCR SYSTEM DCU 5 143 8 Estimated failure factors DEF pump pressure sensor malfunction ...
