Read measured value block ⇒ Page 110.
Note
Due to the various use cases of industrial engines, check
whether the engine attains full load under the respective operat-
ing conditions before performing measurements at full load.
– At full load, increase engine speed from 1500 rpm to full
throttle (accelerator pedal position sender at end stop).
– Have a second person read the measured values at approx.
2500 rpm.
– Exit diagnosis function.
– Switch off ignition.
6.4.2 Display group 1 - Injected quantity
Note
◆ To perform the test increase engine speed from 1500 rpm to
full throttle at full load. Note conditions for measurements at
full load ⇒ Page 125.
◆ The measured values must be read at an engine speed of
2500 rpm (2nd person required).
Test prerequisites
● Engine warm, coolant temperature not below 80°C
● Engine speed 2200…2800 rpm
● Engine at full load
Display
zone
Operating mode or component Specification Evaluation
1 Engine speed 2200...2800 rpm ---
2 Average injection quantity 23.0...45.0 mg/H
⇒ Page 126
3 Pressure in high-pressure fuel system
(actual)
1450...1900 bar ---
4 Coolant temperature 80.0...110.0°C ---
Evaluation: Display group 1, display zone 2 - quantity injec-
ted
Display shows Possible cause of fault Fault remedy
Below specification
◆ Injectors for cylinders 1…4
-N30...N33- defective
– -N30...N33- Check. ⇒ Page 398
Above specification
◆ Engine too cold
– Run engine at increased speed to
warm up, and repeat test
3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
126
Repair Group 01 - Vehicle self-diagnosis
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