Volkswagen CJDA Workshop Manual page 331

◆ Connect vehicle diagnosis, testing and information system
-VAS 5051/B- using diagnostic cable -VAS 5051B/1-.
Test prerequisites
● Battery voltage at least 11.5 V
● Fuel filter OK.
● Fuel tank: level min "reserve".
● Ignition switched off.
Test procedure
– Note safety precautions before beginning work
– Observe rules for cleanliness
WARNING
◆ Wrap a clean cloth around the connection before
opening the fuel system. Then release pressure by
carefully pulling hose off connection.
– Pull fuel supply line -arrow- off high-pressure pump.
– Using a suitable adapter -2-, connect K-Jetronic pressure
tester -V.A.G 1318- to fuel supply line -1-. Connect other
adapter -3- of K-Jetronic pressure tester -V.A.G 1318- to
open connection on high-pressure pump.
Note
The K-Jetronic pressure tester -V.A.G 1318- must be inserted
as an intermediate element into the fuel supply line.
– Switch on ignition.
– Perform final control diagnosis, and activate fuel pump,
⇒ P age
89, final control diagnosis.
– Run fuel pumps until highest fuel pressure has built up.
● Specification: at least 3.5 bar
If the specification is not attained:
– Check union between pressure gauge and fuel line for leaks.
– Test pressure gauge for leaks.
– Check fuel lines and their connections for leaks.
Check whether fuel filter is blocked.
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
⇒ P age
⇒ P age
300.
Industriemotoren - Industrial Engines 2009 ▶
299.
2 Checking components and functions
3
315