Mid 128, Pid 164; Rail Pressure - Volvo TAD650VE Workshop Manual

Diagnostic Trouble Codes
78

MID 128, PID 164

Rail pressure

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