Volvo TAD734GE Repair Manual

Diagnostic Trouble Codes Group 30: Electrical system
78
MID 128, PID 164
Rail pressure
MID 128: Engine control unit
FMI 0: The sensor value is valid but above the nor-
mal working range.
FMI 2: Intermittent or faulty data.
FMI 4: The voltage is less than the normal value or
is short circuited to lower voltage.
FMI 5: The current is less than the normal value or
is open circuited.
FMI Fault code explanation
0 Sensor out of range
2 Plausibility
4, 5 Faulty sensor / Faulty sensor circuit
Fault indication
DCU: Engine warning in DCU display.
CIU: None
Lamp status
FMI 0: None
FMI 2, 4, 5: Yellow lamp
Flash code
Electrical fault: 8.3
Value fault: None
Symptom
FMI 2, 4, 5: Engine speed limitation (1100rpm).
Full fuel flow delivery, limp home with
pressure release valve opened. An esti-
mated rail pressure with depending to
fuel quantity will be used.

Volvo TAD734GE Specifications

General

Engine Model	TAD734GE
Cooling System	Liquid-cooled
Displacement	7.15 liters
Bore x Stroke	108 x 130 mm
Aspiration	Turbocharged
Fuel System	Electronic Unit Injectors (EUI)
Engine Speed	1500 rpm
Emission Level	EU Stage II
Engine Type	4-stroke, 6-cylinder in-line diesel engine