Isuzu 4HL1 Workshop Manual page 183

Engine control system
Table of Contents

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Step
Replace the common rail (common rail
pressure sensor).
13
Is the action complete?
Review the DTC.
1.
Restore the vehicle.
2.
Bleed the air from the fuel system.
14
3.
Using Tech 2, clear the DTC.
4.
Perform test run and review the DTC.
Is DTC118 detected?
Inspect the common rail.
1.
Check the pressure limiter for fuel leak.
15
Is the common rail sound?
Replace the common rail.
16
Is the action complete?
Replace the supply pump.
17
Is the action complete?
Check DTC118 will not be set again.
1.
Restore the vehicle.
2.
Bleed the air from the fuel system.
18
3.
Using Tech 2, clear the DTC.
4.
Perform test run and review the DTC.
Is DTC118 detected?
Action
Engine Control System 1A-181
Value(s)
Yes
Verify repair and
go to Step 18
Go to Step 15
Go to Step 17
Go to Step 18
Go to Step 18
Go to Step 2
No
Repair is
complete
Go to Step 16
Repair is
complete

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