Testing Fuel Pressure Regulator And Holding Pressure - Skoda Octavia 1997 Workshop Manual

OCTAVIA 1997 2,0 l/85 kW Engine, Fuel Injection and Ignition System
If the measurement obtained for one or several injectors
is not within the specification:
–
Replace the faulty injector.
Note
When testing the injection rate also check the jet forma-
tion. The jet must be the same for all valves.
The injectors are installed in the reverse order.
Pay attention to the following:
Replace the O-rings and all the injectors and moisten
lightly with clean engine oil.
Insert injectors vertically and into the correct position
in the fuel rail and secure with retaining clips.
Testing fuel pressure regulator and hold-
ing pressure
The fuel pressure regulator regulates the fuel pressure in
line with the intake manifold pressure.
Special tools, test and measuring equipment and
auxiliary items required
Pressure gauge appliancee.g. -V.A.G 1318-
Adapter, e.g. -V.A.G 1318/10-
Adapter, e.g. -V.A.G 1318/11-
Adapter, e.g. -V.A.G 1318/16-
Test condition
•
Delivery rate of fuel delivery unit o.k., testing
85 kW Engine, Mechanical Components; Rep. Gr. 20
Test sequence
WARNING!
The fuel system is under pressure! Place a cloth
around the connecting point before releasing hose
connections or when opening the system. Then re-
lease pressure by carefully detaching.
–
Pull off the fuel feed line -1- and gather residual fuel in
a cloth.
Edition 01.04
S00.5128.53.20
2.0 l/
Testing components
1
N24-0795
24-2
24
5
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