Display
zone
Operating mode or component
Specification
Evaluation
1
Engine speed
760...940 rpm
---
2
Pressure in high-pressure fuel system
(specified)
170...350 bar
---
3
Pressure in high-pressure fuel system
(actual)
170...350 bar
4
Regulating valve for pressure in high-
pressure fuel system
15...30 %
Evaluation: display group 20, display zone 3 - pressure in
high-pressure fuel system
Display shows
Possible cause of fault
Fault remedy
Deviation from
specification
◆
Defective fuel pressure sender -G247-
◆
Fuel pressure regulating valve -N276-
defective
◆
Fuel metering valve -N290- defective
◆
Fuel pump defective
Evaluation: display group 20, display zone 4 - regulating
valve for pressure in high-pressure fuel system
Display shows
Possible cause of fault
Fault remedy
Deviation from
specification
◆
Fuel pressure regulating valve -N276-
defective
5.3.11 Display group 30 - Pedal encoder
Test prerequisites
● Engine running at idling speed.
● Engine warm, coolant temperature not below 80°C.
● Intake air temperature < 40°C.
Display
zone
Operating mode or component
Specification
Evaluation
1
Accelerator pedal, sender voltage 1
0.67...0.83 V
---
2
Accelerator pedal, sender voltage 2
0.25...0.5 V
---
3
Accelerator pedal, switch position
---
---
4
Accelerator position
0...100 %
Evaluation: Display group 30, display zone 4 - accelerator
position
Display shows
Possible cause of fault
Fault remedy
1.0...100.0%
◆
Defective accelerator position sender
-G79-
◆
Open circuit in wiring to -G79-
– -G79- Check.
3
Industriemotoren - Industrial Engines 2009
▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
102
Repair Group 01 - Vehicle self-diagnosis