Display Group 8 - Torque Limit 1 - Volkswagen CJDA Workshop Manual

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Display Operating mode or component
zone
3 Intaken air mass (actual):
4 Duty cycle of exhaust gas recirculation
valve
Evaluation: display group 3, display zone 3 - intaken air
mass (actual)
Display shows Possible cause of fault
Below specification
◆ Excessive exhaust gas recirculation
◆ Unmetered air
Above specification
◆ Engine too cold
◆ Insufficient exhaust gas recirculation
◆ Defective air mass meter -G70-
Evaluation: display group 3, display zone 4 - duty cycle of
exhaust gas recirculation valve
Display shows Possible cause of fault
Below specification
◆ Excessive exhaust gas recirculation
◆ Unmetered air

5.4.4 Display group 8 - torque limit 1

Note
◆ To perform the test increase engine speed from 1500 rpm to
full throttle at full load. Note conditions for measurements at
⇒ P age
full load 106.
◆ The measured values must be read at an engine speed of
3000 rpm (2nd person required).
Test prerequisites
● Engine warm, coolant temperature not below 80°C
● Engine speed 2800...3200 rpm
● Engine at full load
Display Operating mode or component
zone
1 Engine speed
2 Desired torque
3 Torque limit
4 Smoke limiting
108 Repair Group 01 - Vehicle self-diagnosis
Specification
Approx. intaken air
mass (specified)
80...100 %
Fault remedy
– Check exhaust gas recirculation sys-
⇒ P age 436
tem
– Check intake system for leaks
– Warm up engine, and repeat test
– Give burst on throttle
⇒ P age 411
– -G70- Check.
Fault remedy
– Check exhaust gas recirculation sys-
⇒ P age 436
tem
– Check intake system for leaks
Specification
2800...3200 rpm
xxx Nm
xxx Nm
xxx Nm
Evaluation
⇒ P age 97
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Evaluation
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