TROUBLESHOOTING
DIESEL FUEL
13A-556
62
Fuel
injection
timing
main
Main injection timing
Engine: After warm-up, idle
operation
−3 to 4°CA
65
Supply
pump
learned
status
Although the fuel discharge
quantity is decided depending on
the drive current of the suction
control valve of the supply pump,
learning is executed in idle state
because there is a machine
difference. The learned status is
indicated.
Ignition switch: ON
2*
78
Small
injection
quantity at
pressure 1
− No. 1
cylinder
Indicates the final learned value of
the small injection quantity of No.
1 cylinder at 25 MPa
Ignition switch: ON
−0.41 to 0.36
ms
79
Small
injection
quantity at
pressure 1
− No. 2
cylinder
Indicates the final learned value of
the small injection quantity of No.
2 cylinder at 25 MPa
Ignition switch: ON
−0.41 to 0.36
ms
80
Small
injection
quantity at
pressure 1
− No. 3
cylinder
Indicates the final learned value of
the small injection quantity of No.
3 cylinder at 25 MPa
Ignition switch: ON
−0.41 to 0.36
ms
81
Small
injection
quantity at
pressure 1
− No. 4
cylinder
Indicates the final learned value of
the small injection quantity of No.
4 cylinder at 25 MPa
Ignition switch: ON
−0.41 to 0.36
ms
82
Small
injection
quantity at
pressure 2
− No. 1
cylinder
Indicates the final learned value of
the small injection quantity of No.
1 cylinder at 40 MPa
Ignition switch: ON
−0.47 to 0.43
ms
83
Small
injection
quantity at
pressure 2
− No. 2
cylinder
Indicates the final learned value of
the small injection quantity of No.
2 cylinder at 40 MPa
Ignition switch: ON
−0.47 to 0.43
ms
Ite
m
No.
Inspectio
n item
Explanation of M.U.T. display
Guideline for inspection
Display range,
numerical
value