Volvo Guided Diagnostics
Date: Information Type:
2/18/2012 Diagnostics Fault Codes 128: Engine ECU 96: Rail pressure system
Profile:
EXC, EC210B LC (Volvo) [GB] EXC, EC210B LC (Volvo) [GB] EXC, EC210B LC (Volvo) [GB] EXC, EC210B LC (Volvo) [GB]
EXC, EC210B LC (Volvo) [GB]
MID128 Engine ECU;PSID96 Rail pressure system(128 PSID96)
128 PSID96
Reference 230 Fuel system, description
237 Fuel control valve (FCV), description
237 Injectors, description
Fault mode diagnosis
Fault mode Detection conditions:The engine control unit (E-ECU) registers: that the rail pressure
FMI 0 control is not working correctly
Symptom: Possible causes:
Red central warning Defective fuel control valve
Buzzer sounds continuously Defective rail pressure sensor
Error message screen Defective injectors
Full fuel flow delivery
Max. speed is limited to 1100 rpm
by the engine protection function
Also sets MID 128 PSID 97 FMI 14
Low power because of engine
protection
Rail pressure limitation
Engine shutdown
Action 3021 MID 128 SID 42 Fuel control unit
237 Fuel rail pressure, checking
Fault mode Detection conditions:The engine control unit (E-ECU) registers: that the rail pressure
FMI 1 control is not working correctly
Symptom: Possible causes:
Red central warning Defective fuel control valve
Buzzer sounds continuously Defective rail pressure sensor
Error message screen Defective injectors
Max. speed is limited to 1100 rpm Pressure relief valve locked in
by the engine protection function open position
Also sets MID 128 PSID 97 FMI 14 High pressure leakage
Low power because of engine Low pressure circuit
protection
Rail pressure limitation
Engine shutdown
Action 3021 MID 128 SID 42 Fuel control unit
237 Fuel rail pressure, checking
Fault mode Detection conditions:The engine control unit (E-ECU) registers: Low rail pressure
FMI 4 Symptom: Possible causes:
Red central warning Defective fuel control valve
Buzzer sounds continuously Air in fuel system
Error message screen Defective injectors
Max. speed is limited to 1100 rpm Pressure relief valve locked in
by the engine protection function open position
Also sets MID 128 PSID 97 FMI 14 High pressure leakage
Low power because of engine Low pressure circuit
protection Defective rail pressure sensor
Rail pressure limitation
Engine shutdown
Action 3021 MID 128 PID 164 Injection control pressure
3021 MID 128 SID 42 Fuel control unit
237 Fuel rail pressure, checking
Fault mode Detection conditions:The engine control unit (E-ECU) registers: that the rail pressure
FMI 12 control is not working correctly
Symptom: Possible causes:
Red central warning Defective fuel control valve
Buzzer sounds continuously Defective injectors
Error message screen Pressure relief valve unwanted
Max. speed is limited to 1100 rpm opening
by the engine protection function High pressure leakage
Also sets MID 128 PSID 97 FMI 14 Low pressure circuit
Low power because of engine Defective rail pressure sensor
protection
Rail pressure limitation
Engine shutdown
Action 3021 MID 128 PID 164 Injection control pressure
3021 MID 128 SID 42 Fuel control unit
237 Fuel rail pressure, checking
Guided Diagnostics
