Display Group 8 - Torque Limit - Volkswagen CJDA Workshop Manual

● Engine warm, coolant temperature not below 80°C
● Engine speed 2200...2450 rpm
● Engine at full load
Display Operating mode or component
zone
1 Engine speed
2 Intaken air mass (specified):
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

6.5.4 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 129.
◆ The measured values must be read at an engine speed of
2300 rpm (2nd person required).
Test prerequisites
● Engine warm, coolant temperature not below 80°C
● Engine speed 2200...2450 rpm
● Engine at full load
6 Measured value blocks, engine codes CPYA, CPYB, CPYC, CPYD, CPYE, CPYF, CPYG
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
Industriemotoren - Industrial Engines 2009 ▶
Specification
2200...2450 rpm
690...750 mg/stroke
Approx. intaken air
mass (specified)
65...80 %
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
– -G70- Check.
Fault remedy
– Check exhaust gas recirculation sys-
⇒ P age 436
tem
– Check intake system for leaks
3
Evaluation
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⇒ P age 113
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⇒ P age 411
131