Inspect The Response Delay Of The Egr Valve - Hino Motors HINO 155 series Workshop Manual

5

Inspect the response delay of the EGR valve

(2)
Do the measurements meet the standard value?
Check that P0234 is not detected again to
complete the check.
Perform "After-inspection work" of INFOR-
MATION section.
ENGINE (J05E)/TROUBLESHOOTING
1. Select [Inspection Menu] and then [EGR inspection] from the
menu, then inspect the response delay at the Target EGR position
(1)
and Actual EGR position.
(3)
! CAUTION
Perform the inspection while the engine is stopped to avoid dam-
(4)
ages.
(5)
<Inspection procedure>
(1) Select [Inspection Menu].
(2) Select [EGR inspection].
(3) Click [Start inspection].
(4) Click [EGR opening UP]:
SHTS021270300342
• Inspect the response delay at each step of the Target EGR position
and Actual EGR position from 0 to 90%.
(5) Click [EGR opening DOWN]:
• Inspect the response delay at each step of the Target EGR position
and Actual EGR position from 90 to 0%.
HINT
The EGR opening position changes of around 10% per step
between 0 – 90%.
From the Target EGR position to the Actual EGR position,
the response delay should be within 5 seconds.
YES
Standard values
NO
Replace the EGR valve.
Perform "After-inspection work" of INFOR-
MATION section.
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