Display Group 3 - Exhaust Gas Recirculation - Volkswagen CJDA Workshop Manual

● 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 Average injection quantity
3 Pressure in high-pressure fuel system
(actual)
4 Coolant temperature
Evaluation: Display group 1, display zone 2 - quantity injec-
ted
Display shows Possible cause of fault
Below specification
◆ Injectors for cylinders 1...4
Above specification
◆ Engine too cold
◆ Shortage of fuel
◆ Air in fuel system
◆ Injectors for cylinders 1...4

5.4.3 Display group 3 - Exhaust gas recirculation

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 Intaken air mass (specified):
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
-N30...N33- defective
-N30...N33- defective
5 Measured value blocks, engine codes CJDA, CJDD
Industriemotoren - Industrial Engines 2009 ▶
Specification
2800...3200 rpm
40.0...60.0 mg/stroke
1200.0...1700.0 bar
80.0...110.0°C
Fault remedy
– -N30...N33- Check.
– Run engine at increased speed to
warm up, and repeat test
– Check fuel supply system
⇒ P age
298, removing and installing
parts of fuel supply system
– Bleeding fuel system
– -N30...N33- Check.
Specification
2800...3200 rpm
450...950 mg/stroke
3
Evaluation
---
⇒ P age 107
---
---
⇒ P age 398
⇒ P age
383.
⇒ P age 398
Evaluation
---
---
107