Isuzu N 2008 Series Workshop Manual page 82

Step
Important: The fuel supply pump must be timed to
the engine and adjustment value must be learned
to the ECM.
Notice: Always replace the fuel filter element when
9
a fuel supply pump is replaced.
Replace the fuel supply pump and fuel filter
element. Refer to Fuel Supply Pump and Fuel Filter
Element in Section 1D Engine Fuel.
Did you complete the replacement?
1. Reconnect
harness connector(s).
2. Clear the DTCs with a scan tool.
3. Turn OFF the ignition for 30 seconds.
4. Start the engine.
10
5. Operate the vehicle within the Conditions for
Running the DTC. You may also operate the
vehicle within
observed from the Freeze Frame/ Failure
Records.
Did the DTC fail this ignition?
Observe the DTC Information with a scan tool.
11
Are there any DTCs that you have not diagnosed?
Action
all previously disconnected
the conditions that
Engine Control System (4JJ1)
Value(s)
—
—
you
—
Yes
Go to Step 10
Go to Step 2 Go to Step 11
Go to DTC List
1A-79
No
—
System OK