Display Group 11 - Charge Pressure Control; Display Group 12 - Status - Volkswagen CJDA Workshop Manual

● Intake air temperature < 40°C.
Display Operating mode or component
zone
1 Intaken air mass (actual)
2 Atmospheric pressure (ambient pressure)
3 Charge pressure (actual)
4 Accelerator position
◆ If accelerator position sender -G79- is
installed
1)
The values displayed at "idling speed" are not relevant.
Evaluation: Display group 10, display zone 4 - accelerator
position
Display shows Possible cause of fault
1.0...100.0%
◆ Defective accelerator position sender
◆ Open circuit in wiring to -G79-

5.3.7 Display group 11 - Charge pressure control

Test prerequisites
● Engine running at idling speed.
● Engine warm, coolant temperature not below 80°C.
● Intake air temperature < 40°C.
Display Operating mode or component
zone
1 Engine speed
2 Charge pressure (specified)
3 Charge pressure (actual)
4 Duty cycle of charge pressure control sol-
enoid valve
1)
The values displayed at "idling speed" are not relevant.

5.3.8 Display group 12 - Status

Test prerequisites
● Engine running at idling speed.
● Engine warm, coolant temperature not below 80°C.
● Intake air temperature < 40°C.
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
-G79-
5 Measured value blocks, engine codes CJDA, CJDD
Industriemotoren - Industrial Engines 2009 ▶
Specification
1)
xxx mg/stroke
900...1100 mbar
1)
xxx mbar
0,0 %
Fault remedy
– -G79- Check.
Specification
760...940 rpm
1)
xxx mbar
1)
xxx mbar
1)
xxx %
3
Evaluation
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⇒ P age 99
⇒ P age 316
Evaluation
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99