Volkswagen CPYC User Manual

Display
zone
Operating mode or component Specification Evaluation
3 Intaken air mass (actual): Approx. intaken air
mass (specified)
⇒ Page 97
4 Duty cycle of exhaust gas recirculation
valve
80...100 % ---
Evaluation: display group 3, display zone 3 - intaken air
mass (actual)
Display shows Possible cause of fault Fault remedy
Below specification
◆ Excessive exhaust gas recirculation
– Check exhaust gas recirculation sys-
tem ⇒ Page 436
◆ Unmetered air
– Check intake system for leaks
Above specification
◆ Engine too cold
– Warm up engine, and repeat test
◆ Insufficient exhaust gas recirculation
– Give burst on throttle
◆ Defective air mass meter -G70-
– -G70- Check. ⇒ Page 411
Evaluation: display group 3, display zone 4 - duty cycle of
exhaust gas recirculation valve
Display shows Possible cause of fault Fault remedy
Below specification
◆ Excessive exhaust gas recirculation
– Check exhaust gas recirculation sys-
tem ⇒ Page 436
◆ Unmetered air
– Check intake system for leaks
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
full load ⇒ Page 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
zone
Operating mode or component Specification Evaluation
1 Engine speed 2800...3200 rpm ---
2 Desired torque xxx Nm ---
3 Torque limit xxx Nm ---
4 Smoke limiting xxx Nm ---
3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
108
Repair Group 01 - Vehicle self-diagnosis

Volkswagen CPYC Specifications

General

Brand	Volkswagen
Model	CPYC
Category	Engine
Language	English