ENGINE CONTROL SYSTEM (J08E)
4–1280
NO
YES
1.
Make sure the fuel high-pressure pipe is not leaking fuel.
NO
YES
1.
Make sure the bubble separator is not clogged.
NO
YES
1.
Perform an SCV test and a malfunction reproduction test.
•
For a detailed procedure, refer to the separate "SCV free acceler-
ation test".
2.
Compare the results with those obtained in step 4 and check if
they improved.
Clean the gauze filter, and go to step 12.
Go to step 12.
12
Inspect the fuel high-pressure pipe
Was any failure found?
Repair or replace the faulty part, and go to
step 13.
Go to step 13.
13
Inspect the bubble separator
Was any failure found?
Repair or replace the faulty part, and go to
step 14.
If failure was found in steps 7
–
12: Go to
step 14.
If failure was not found in steps 7
–
12: Go to
step 15.
14
SCV free acceleration test [Hino-DX]
Select
Engine
SAPH16F010301002
Did the test results improve?
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 ...
