Volkswagen CJDA Workshop Manual page 403

Note
Adhere strictly to rules of cleanliness. No dirt must be allowed to
get into the disconnected fuel return lines or the open connec-
tions on the injectors under any circumstances.
– Install tester for fuel return system -VAS 6330- between re-
turn line connection on injector and return line.
– Start engine.
– Check pressure on pressure gauge.
◆ Specification: 8...14 bar
If the value does not match the specification, fit a new pressure
retention valve.
2 Checking components and func-
tions
WARNING
Adhere to the general safety regulations and the notes on
repair work on the engine!
The described component checks and functional checks are ap-
plicable for the series components and the current flow dia-
⇒ P age
grams as of page
If components and electric circuits differ, observe the notes of
the respective industrial engine customer.
Checking fuel metering valve -N290-
Checking fuel pressure regulating valve -N276-
Checking fuel pressure sender -G247-
Checking injectors, cylinder 1...4 -N30...N33-
Checking engine speed sender -G28-
Checking Hall sender -G40-
Checking intake air temperature sender -G42-
Checking coolant temperature sender -G62-
Checking fuel temperature sender -G81-
Checking air mass meter -G70-
Checking throttle valve module -J338-
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
⇒ P age 1
486, current flow diagrams.
⇒ P age
388.
⇒ P age
⇒ P age
394.
⇒ P age
⇒ P age
400.
⇒ P age
403.
⇒ P age
⇒ P age
⇒ P age
409.
⇒ P age
411.
⇒ P age
414.
Industriemotoren - Industrial Engines 2009 ▶
391.
398.
404.
407.
2 Checking components and functions
3
387